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uni SD Card ReaderYooYee

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uni SD Card Reader, High-Speed USB C to Micro SD Card Adapter USB 3.0 Dual Slots, Memory Card Reader for SD/Micro SD/SDHC/SDXC/MMC, Compatible with MacBook Pro/Air, Chromebook, Android Galaxy

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4.7 23,995 ratings

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Amazon's Choice in Computer Memory Card Readers by uni

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Color: Grey

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Purchase options and add-ons

Brand	uni
Media Type	microSDHC, microSDXC, microSD, SDHC, SD Card
Connectivity Technology	USB Type C, USB Type C USB
Special Feature	Plug & Play
Color	Grey

About this item

【USB 3.0 + USB C】 Both interfaces support high-speed data transfer up to 5 Gbps, allowing you easily transfer 1G files in seconds. Dual Card Slots, support SDXC, SDHC, SD, MMC, RS-MMC, Micro SDXC, Micro SD and Micro SDHC cards from Camera/ Gopro/ Dash Cam/ Surveillance camera. Backwards compatible with USB 2.0 and USB 1.1. * Memory cards shown in images are not included in the product.
【Double duty】 Simultaneously reading and writing on two cards to save the constant plugging and pulling of plugs. Enjoy fast photo downloads, smooth video editing and fast 3D Printer file transfers. Double your productivity with simultaneous microSD/SD card access. View recordings of your security cameras, wildlife monitors, private surveillance cameras and car monitors instead of bringing them home to you.
【Plug and Play】uni Card Reader for camera memory card has handy covers at both ends to keep out liquid and dust. Its slim profile makes it easy to store in your camera bag or backpack, and the useful cord keeps it from getting lost and provides convenient access to micro/SD cards when needed. No driver is required in Windows 11/10/8/7/Vista or Mac OS X 10.2 and later. No additional power supply is required.
【Wide Compatibility】Compatible with iPhone 15 Pro/Pro Max, MacBook Pro (2023~2016), MacBook (2022~2015), iMac Pro (iMac), Acer Aspire Switch 12S/R13, Predator 15/17X, XPS 13/15/17, Alienware 13/15/17, Spectre x360, Microsoft Surface Pro, Book 2, Razer Blade 15/Stealth 13/Pro 17, Samsung Galaxy Tab Pro, S23/ S22 Ultra/ S21/ S20 and most other USB-C / A devices.
【No Camera Software Required】uni high speed Memory Card Reader connects directly to your Android phone's USB-C port, allowing you to instantly view your footage and manage photo videos without the need for additional apps or Wi-Fi connections. Share your experiences in real-time and never miss an exciting moment again! uni Micro SD USB Adapter with 24/7 customer service and hassle-free 18-month warranty. Please rest assured we stand behind our products and customers.

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uni USB-C SD 4.0 Card Reader, UHS-II SD Card Adapter, High Speed Memory Card Reader for Micro SD, SD, SDXC, SDHC, RS-MMC, SD Card Reader Type-C Compatible with MacBook Pro/Air, Laptop, Tablet, etc
$24.99
(181)
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uni SD Card Reader, High-Speed USB C to Micro SD Card Adapter USB 3.0 Dual Slots, Memory Card Reader for SD/Micro SD/SDHC/SDXC/MMC, Compatible with MacBook Pro/Air, Chromebook, Android Galaxy

Page 1 of 1Start overPage 1 of 1

uni SD Card Reader Bundle with 4 in 1 USB C USB 3.0 Multi Memory Card Reader

$24.95 $24.98

7

This bundle contains 2 items
uni 100W USB C to USB C Cable 10ft Bundle with SD Card Reader

$19.95 $19.98

3

This bundle contains 2 items
uni USB-C & USB-A SD Card Reader, SD Card Reader with Long Cable

$20.98 $21.98

This bundle contains 2 items
uni USB 3.0/USB C SD Card Reader Bundle with uni USB C SD Card Reader

$21.95 $21.98

This bundle contains 2 items
Type B Card Reader ＋ USBA/C SD Card Reader

$29.98 $31.98

This bundle contains 2 items

Frequently bought together

This item: uni SD Card Reader, High-Speed USB C to Micro SD Card Adapter USB 3.0 Dual Slots, Memory Card Reader for SD/Micro SD/SDHC/SDXC/MMC, Compatible with MacBook Pro/Air, Chromebook, Android Galaxy

$9.99

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SanDisk 128GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAA-128G-GN6MA

$16.58

Get it as soon as Monday, Aug 5

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Ships from and sold by Amazon.com.

SanDisk 128GB Extreme PRO SDXC UHS-I Memory Card - C10, U3, V30, 4K UHD, SD Card - SDSDXXD-128G-GN4IN

$21.99

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PRODUCT CERTIFICATION (1)
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CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

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uni SD Card Reader

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	This Item uni SD Card Reader, High-Speed USB C to Micro SD Card Adapter USB 3.0 Dual Slots, Memory Card Reader for SD/Micro SD/SDHC/SDXC/MMC, Compatible with MacBook Pro/Air, Chromebook, Android Galaxy	Recommendations Beikell SD Card Reader, Dual Connector USB 3.0/USB C Memory Card Reader Adapter - Supports SD/Micro SD/SDXC/SDHC/MMC/RS-MMC/UHS-I, Compatible with MacBook Pro, MacBook Air, iPad Pro, Galaxy S21 etc.	dummy SWITCHFLUX SD Card Reader, High-Speed Memory Card Reader Adapter, USB C USB 3.0 to Micro SD Card Adapter for SD/Micro SD/SDHC/SDXC/MMC Compatible with MacBook Pro/Air, Galaxy, iPhone 15 Series	dummy Beikell SD Card Reader,Dual Connector USB C USB 3.0 Memory Card Reader Adapter - Supports SD/Micro SD/MMC/SDXC/SDHC/Micro SDHC Compatible with MacBook Pro, MacBook Air, Galaxy S21, S22	dummy UANTIN 4.0 USB C SD Card Reader \| High-Speed 2-in-1 Memory Card Reader for Micro SD, SD, SDXC, SDHC, RS-MMC and UHS-II Card, SD Card Reader Compatible with MacBook Pro/Air,Laptop,Tablet,etc	dummy uni SD Card Reader, High-Speed USB 3.0 to Micro SD Card Adapter, Aluminum Computer Memory Card Reader Dual Slots, for SD/SDXC/SDHC/MMC/Micro SDXC/TF/Micro SDHC \| Laptop, PC, and more
	Try again! Details Added to Cart spCSRF_Control	Try again! Details Added to Cart spCSRF_Control	Try again! Details Added to Cart spCSRF_Control	Try again! Details Added to Cart spCSRF_Control	Try again! Details Added to Cart spCSRF_Control	Try again! Details Added to Cart spCSRF_Control
Price	$9.99	-22% $6.99 Typical: $8.99	$6.99	-14% $5.99 Typical: $6.99	$24.99	-29% $11.99 List: $16.99
Delivery	Get it as soon as Monday, Aug 5	Get it as soon as Tuesday, Aug 6	Get it as soon as Tuesday, Aug 6	Get it as soon as Tuesday, Aug 6	Get it as soon as Tuesday, Aug 6	Get it as soon as Monday, Aug 5
Customer Ratings	4.723,995	4.613,642	4.445	4.75,139	4.821	4.64,781
Easy to use	4.6	4.5	3.8	4.6	—	4.5
Versatility	4.6	4.4	3.8	4.6	—	4.3
Quality of material	4.5	4.5	4.0	4.6	—	4.5
Value for money	4.5	4.4	—	4.5	—	4.5
Easy to recognize	—	4.5	4.6	4.8	—	4.4
Sold By	YooYee	MatriCom	SWITCHFLUX-US	Blufits Sports Limited	UANTIN-Direct	YooYee
hardware interface	usb3.0, usb c	usb, usb c, usb1.1, micro sdxc	usb, usb c, usb1.1, microsd, micro sdxc	usb, usb c	microsd	media card, usb3.0, microsd, micro sdxc, micro sdhc, multimedia card
data transfer rate	5 gigabits per second	5000 megabits per second	5000 megabits per second	5000 megabits per second	312 megabits per second	5 gigabits per second
operating system	Mac OS, Windows, Android	Windows 10, Linux, Chrome OS	Android, All Windows Server Versions 2000, Chrome OS, LindowsOS	Windows 10, Linux, Chrome OS	Windows Vista/7/8/10/11, Mac OS, Chrome OS, Linux	Linux,Windows
media type	SD Card, microSD, microSDHC, microSDXC, SDHC	RS-MMC, UHS-1, microSDXC, SD Card, microSD, SDXC, microSDHC, MMC, SDHC	microSDXC, SD Card, microSD, SDXC, microSDHC, MMC, SDHC	microSDXC, SD Card, microSD, SDXC, microSDHC, MMC, SDHC	microSD	RS-MMC, UHS-1, microSDXC, SD Card, microSD, SDXC, microSDHC, MMC, SDHC

Product Description

uni 2-IN-1 SD CARD READER

1 Plug and Play 2 5Gbps High-Speed Transfer 3 For GoPro's TF card

Product Highlights

SD/ MicroSD, SDHC/ MicroSDHC, SDXC/ MicroSDXC cards from Dash Cam/Trail Cam/Digital Camera are supported in UHS-I mode up to 104MB/s.
Simultaneously read & write on 2 cards, you can back up your camera cards to other cards.
Support memory card capacity up to 2TB.
Plug and Play, easy in and easy out.

Warm Tips

Data transfer rates are subject to the speed of the memory card itself and your computer's USB ports.
A device with USB 2.0 would only run at 480Mbps.
Read UHS-II cards at UHS-I speed.
Memory cards shown in images are NOT INCLUDED in the product.
Not support iPad, iPhone(lightning. But for iPhone(typec

Applicable to a variety of devices on the market!

✔Tablets	iPad Pro 2022 / 2021 / 2020 / 2018，iPad Air 2022 / 2020, iPad mini 6
✔ Laptops	MacBook Pro (After 2016), MacBook Air M3 / M2 / M1, MacBook 2017/2016/2015, iMac Pro, iMac (After 2017), Mac mini 2018 Dell XPS 15 / 13, Surface Book 2, Surface Go, Pixelbook, Pixelbook Go (and more)
✔ Phones	𝒊𝑷𝒉𝒐𝒏𝒆 15 Series ( 𝒊𝑷𝒉𝒐𝒏𝒆 15, 𝒊𝑷𝒉𝒐𝒏𝒆 15 Plus / Pro / Pro Max), Samsung Galaxy S23, S22 Ultra, S22+, S22, S21, S21 Ultra, S20, S20 Plus, S20 Ultra, S10e / S10 / S10 Plus / S8 / S9 / S8 Plus / S9 Plus / Note 10 / Note 9 / Note 8 Pixel, Pixel 2, Pixel C, Nexus 5X / 6P, HTC 10 / U11 / U12, OnePlus 3 / 5t / 6 / 7 / 8 / 9, Lumia 950 / 950XL, LG G5, V20, Samsung Galaxy Tab S3 Tablet (and more)
✔ Card Compatibility	SD, SDHC, SDXC, RS-MMC, MicroSD, MicroSDHC, MicroSDXC from Camera/ Gopro/ Dash Cam/ Surveillance camera/ Baby Monitor/ Digital Camera
✔ Camera Compatibility	Hero 6 Black / 5 Session / 5 Black / 4 Silver / 4 Black etc. EOS 700D / 1300D / 100D / 80D / 200D / 750D / 800D / 77D etc. D750 / D3300 / D5300 / D5500 / D7200 / D800 / D600 / D610 / D850 / D3100 / D3200 / D3400 etc. Sony DSC-RX100 / DSC-WX350 / DSC-HX60B / DSC-HX400V / DSC-W830 / ILCE-6000LB / ILCE-5000LB / DSC-W810B etc.
✔ System Compatibility	Windows 11/ 10 / 8.1 / 8 / 7 / XP / Vista, macOS, Linux, Chrome OS, etc.
✘ Imcompatible	(✘) Not Compatible With lightning, iPad, iPhone(LIGHTNING), Sim Card, Nintenxx Switch.
**Note 1	If you are not sure, please feel free to let us know, we are very glad to help you to check.

**Note 2	Data transfer rates are subject to the speed of the memory card itself and your computer's USB ports.
**Note 3	If you fail to transfer large files, please try to format the SD/MicroSD cards to the right format for your devices. Recommend using MS-DOS (FAT) for 32GB or smaller cards, and exFAT for 64GB cards.
**Note 4	It is recommended that the case be removed for use. If the case is too tightly wrapped, the product may not be fully inserted into the device.
Q&A-1	Could you find the SD card via "FILES"?
*	Insert the SD card into the reader > plug the device card reader into the iPhone(TYPE-C) > click on the “FILES” app > click on iCloud Drive’s “Browse” > click on Browse’s “Your SD card name” > Now you can view your files from your SD card on “Your SD card name”
Q&A-2	Can't find transfer between Android phone/tablet and SD Card?
**	Please make sure your device OTG function enabled, and find the SD card in the "settings". For detailed steps, please find on your device manual.

uni Card Reader Comparison

	SD Card Reader 2in1	SD4.0 Card Reader	SD Card Reader 4in1	USB-C SD Card Reader	SD Card Reader USB	USB SD Card Reader	USB 3.0 Sharing Switch
Customer Reviews	23,995	181	812	7,438	4,120	4,781	69
Price	$9.99	$24.99	$14.99	$11.99	$7.99	$11.99	$19.99
USB Type	USB C & USB 3.0	USB C	USB C & USB 3.0	USB C	USB 3.0	USB 3.0	USB 3.0
Card Slot	SD / Micro SD	SD4.0 / Micro SD4.0	SD / CF / Micro SD / MS card	SD / Micro SD	SD / Micro SD	SD / Micro SD	N/M
Transfer Rate	5Gbps / UHS-I	312MB/s / UHS-Ⅱ	5Gbps / UHS-I	5Gbps / UHS-I	5Gbps / UHS-I	5Gbps / UHS-I	5Gbps
Work Simultaneously	✔	✔	✔	✔	✔	✔	✔
Note	Memory cards are not included	Memory cards are not included	Memory cards are not included	Memory cards are not included	Memory cards are not included	Memory cards are not included	Sharing Switch for 2 PCs

Product guides and documents

User Manual (PDF)

Product information

Technical Details

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Other Technical Details

Brand

‎uni

Item model number

‎UNICASD01

Hardware Platform

‎PC, Mac

Operating System

‎Windows, Mac OS, Android

Item Weight

‎0.459 ounces

Product Dimensions

‎0.67 x 2.36 x 3.94 inches

Item Dimensions LxWxH

‎0.67 x 2.36 x 3.94 inches

Color

‎Grey

Manufacturer

‎uni

ASIN

‎B081VHSB2V

Country of Origin

‎China

Date First Available

‎January 17, 2020

Additional Information

Customer Reviews

4.7 23,995 ratings

4.7 out of 5 stars

Best Sellers Rank

#4 in Computer Memory Card Readers

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

Product Warranty: For warranty information about this product, please click here

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Customer reviews

23,995 global ratings

How customer reviews and ratings work

Customers say

Customers like the sturdiness, performance, and usb port of the memory card reader. For example, they mention it's reliable, works well, and has both USB connections to choose from. Customers are also impressed with the ease of use, saying it'll make moving any type of media very easy. They appreciate the compatibility, saying that it works with micro and full-size SD cards.

AI-generated from the text of customer reviews

Select to learn more

Performance Ease of use Sturdiness Portability Value Usb port Compatibility Appearance

894 customers mention "Performance"772 positive122 negative

Customers like the performance of the memory card reader. They mention that it works well, it functions perfectly, and it's very useful. Some say that the reader is easy to use and has quick transfer speeds. Overall, most are happy with the performance and recommend it to others.

"...I love the size, it's very portable and convenient. Definitely better, more durable and cheaper than the apple version which I have...." Read more

"Not much to say, works great, small, and convenient. Quality seems good, haven't run into any issues so far connecting it...." Read more

"...from my SD card to my computer in seconds, which has saved me so much time and frustration...." Read more

"...it 4 stars because the build quality is good and it has never once acted up on Windows, which I unfortunately concede is going to be the average use..." Read more

435 customers mention "Ease of use"409 positive26 negative

Customers find the memory card reader convenient, easy to use, and convenient to use on the go. They mention that it handles all types of cards with ease, making it easy to transfer photos from camera to computer. Some say that it's easy to plug in and reads SD and Micro SD cards.

"...I love the size, it's very portable and convenient. Definitely better, more durable and cheaper than the apple version which I have...." Read more

"Not much to say, works great, small, and convenient. Quality seems good, haven't run into any issues so far connecting it...." Read more

"...dual slots for both SD and micro SD cards make it easy to transfer files between different devices without having to switch out different adapters...." Read more

"This is an easy to use and great performing memory card reader. It works with SD and mini SD cards and reads fast and works effectively...." Read more

356 customers mention "Sturdiness"303 positive53 negative

Customers like the sturdiness of the memory card reader. They mention it's made well, reliable, and works great. They also appreciate the clean and protected connectors.

"...Definitely better, more durable and cheaper than the apple version which I have...." Read more

"Not much to say, works great, small, and convenient. Quality seems good, haven't run into any issues so far connecting it...." Read more

"...I highly recommend the uni SD Card Reader to anyone in need of a reliable and high-speed card reader...." Read more

"...I still gave it 4 stars because the build quality is good and it has never once acted up on Windows, which I unfortunately concede is going to be..." Read more

268 customers mention "Portability"268 positive0 negative

Customers find the memory card reader portable. They say it's small enough to fit in their pocket and still capable of doing what a big clunky cabled can do. They also appreciate the slim design and removable covers on each end. Overall, customers say it works well and is perfect for on the go use.

"...I love the size, it's very portable and convenient. Definitely better, more durable and cheaper than the apple version which I have...." Read more

"Not much to say, works great, small, and convenient. Quality seems good, haven't run into any issues so far connecting it...." Read more

"...This inexpensive device is very compact and versatile." Read more

"...I would recommend this product for sure because it is compact, versatile and has been a great value. I hope this review help!" Read more

177 customers mention "Value"164 positive13 negative

Customers are satisfied with the value of the memory card reader. They mention that it is a reasonable-priced purchase, works as promised, and provides decent quality for the price.

"...Definitely better, more durable and cheaper than the apple version which I have...." Read more

"...product for sure because it is compact, versatile and has been a great value. I hope this review help!" Read more

"- great quality, not cheap and plastic like- compact-able and small, super good for travel-..." Read more

"...Great product overall at a great price." Read more

149 customers mention "Usb port"120 positive29 negative

Customers like the usb port of the memory card reader. They say it's versatile with both USB connections to choose from. Some say it has regular USB on one end and USB-C on the other so it'll work with anything. Overall, most are happy with the port's versatility and ease of use.

"...This makes it so easy, and versatile with both USB connections to choose from." Read more

"...No problems with connecting to my USB 3.0 port on my laptop, but I haven't tried the C port connector yet...." Read more

"...I like that it connects to my Mac via USB or USB-C, the latter I haven't even got to use yet...." Read more

"...I like that you can plug it into the laptop either using regular USB, or USB C. Its very simple but very useful!" Read more

138 customers mention "Compatibility"122 positive16 negative

Customers like the compatibility of the memory card reader. They say it works with micro and full-size SD cards, and has the ability to recognize micro SD and SD through USB-C and USB-A ports. Some appreciate the small size and ability to handle multiple memory card formats with ease.

"...truly exceeded my expectations in terms of speed, convenience, and compatibility...." Read more

"...I was happy with the performance and the dual card compatibility that I ended up purchasing a second one for home use...." Read more

"...It works with SD and mini SD cards and reads fast and works effectively...." Read more

"Does exactly what it says. Reads SD and SD adapters. No issue with Win 7/8/10/11 or any Windows. Great Packaging**" Read more

108 customers mention "Appearance"99 positive9 negative

Customers are satisfied with the appearance of the memory card reader. For example, they mention it has a great design, the caps fit securely, and the aluminum body is sleek and sturdy. Some are happy with the form factor and say it feels like a quality device. Overall, most are happy that it's a very nice little gadget.

"...SUMMARY: Great form factor. No fitment issues...." Read more

"For the price, this product is amazing. It looks and feels premium and does exactly what it’s supposed to do...." Read more

"This thing is super cool, it's backward compatible with USB 2.0 and SD cards...." Read more

"great design. great build" Read more

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Amazon Customer

Amazing!

Reviewed in the United States on June 25, 2024

Color: GreyVerified Purchase

Came really fast and it loads pictures really fast. I love the size, it's very portable and convenient. Definitely better, more durable and cheaper than the apple version which I have. Will be buying a few more for my office as the interns misplace them often.

Update: I just purchased two more. You can use the micro sd and regular at the same time and you can eject one without messing up downloading from the other. LOVE THAT!

5 people found this helpful

Helpful

Mark LaRosa

So small, but perfect.

Reviewed in the United States on July 5, 2024

Color: GreyVerified Purchase

Not much to say, works great, small, and convenient. Quality seems good, haven't run into any issues so far connecting it. Wish I had gotten one sooner as reaching around to the back of my iMac to try to find the card slot was such a pain. This makes it so easy, and versatile with both USB connections to choose from.

5 people found this helpful

Helpful

Wanderer

10/10

Reviewed in the United States on July 11, 2024

Color: GreyVerified Purchase

I recently purchased the uni SD Card Reader and I couldn't be happier with my purchase. This card reader has truly exceeded my expectations in terms of speed, convenience, and compatibility.

First and foremost, the speed of this card reader is impeccable. I have used other card readers in the past that have been slow and unreliable, but the uni SD Card Reader is lightning fast. I transfer large files from my SD card to my computer in seconds, which has saved me so much time and frustration. The USB 3.0 technology is a game-changer and I am incredibly impressed with how smoothly and quickly it operates.

In addition to its speed, the uni SD Card Reader is also incredibly convenient. The dual slots for both SD and micro SD cards make it easy to transfer files between different devices without having to switch out different adapters. This has been a huge time-saver for me and has greatly improved my workflow.

The compatibility of this card reader is also worth mentioning. I have used it with my MacBook Pro, Chromebook, and Android Galaxy phone, and it has worked seamlessly with all of them. I appreciate that I don't have to worry about compatibility issues or needing multiple adapters for different devices.

Overall, I highly recommend the uni SD Card Reader to anyone in need of a reliable and high-speed card reader. It has made transferring files between devices a breeze and has greatly improved my workflow. I give this product a solid 5-star rating and will continue to use it for all of my future file transfer needs.

2 people found this helpful

Helpful

Concern

Linux users, have caution

Reviewed in the United States on April 23, 2024

Color: GreyVerified Purchase

My workplace switched over to laptops for our primary computers and these laptops, nor their docking stations, came with SD card slots, so I bought one of these to continue a minor part of my job. I was happy with the performance and the dual card compatibility that I ended up purchasing a second one for home use.

Unfortunately, I have found that transferring files from these to a Linux environment (Ubuntu, in this case) fails quite often. Sometimes it will take a while for the computer to recognize the drive at all. For a product that advertises itself on Linux compatibility, this seems a little unacceptable.

I still gave it 4 stars because the build quality is good and it has never once acted up on Windows, which I unfortunately concede is going to be the average use case.

7 people found this helpful

Helpful

V&S Vienna

uni Memory Card reader works great

Reviewed in the United States on July 16, 2024

Color: GreyVerified Purchase

This is an easy to use and great performing memory card reader. It works with SD and mini SD cards and reads fast and works effectively. No problems with connecting to my USB 3.0 port on my laptop, but I haven't tried the C port connector yet. This inexpensive device is very compact and versatile.

Helpful

Christopher M.

THERMAL ISSUES ARE A CONCERN

Reviewed in the United States on March 3, 2024

Color: GreyVerified Purchase

I liked the smaller form factor versus the old Sandisk ImageMate All-In-One workhorse model that is intended for a desktop setup. I had no issues with the Uni USB-C reading Samsung or San Disk memory cards. Uni functioned perfectly via port to port read and write at simultaneously and from card to card data transfers. [NOTE: a few users complained the device did not function in that manner by design. I can assure you it has no issues reading and writing to two SD cards mounted in the unit.]

SETUP: 2014.5 Macbook Pro running OSX 10.15.3 with Uni USB-C 3.0 mated to Mac USB port directly (no USB hub).

MEDIA:

-Samsung SD 500GB card connected directly into the micro SD slot (no adapter)
-Sandisk 400GB card connected via card adapter into larger SD slot. (w adapter)

ANOMALY: THERMAL ISSUES

Upon insertion, Spotlight indexing alone caused the Samsung SD card to get red hot to the touch thus warranting an immediate shutdown and removal of the device.

-Spotlight was disabled and the Samsung card was reinserted without thermal issues.
-Sandisk SD card inserted. No issues.

Data transfer was then started with a few small files at a time without issue. 2.26GB of docx files were then transferred without issue. When moving large amounts of data however, the card got hot. So did the entire USB card reader. UNI device warm to the touch. Card temp nominal temp. No rise detected.

The transfer results were successful. This device does work regarding Form, Fit and Function. However, the heat issues are something one should be weary of.

Reason being, as a comparison, I ran the same Samsung SD card in the old Sandisk ImageMate All-In-One model and allowed Spotlight to index the entire 500GB card. The card was luke warm while the reader body was cold. Now, as to whether or not the circuit board inside was getting warm or not, I cannot attest to that but, I can attest to the fact the temperate of the SD card itself was luke warm. And that is really what matters. A scorching hot memory card warrants attention. I can copy the entire contents and move it over in one operation without the cards melting down on the old workhorse (Sandisk ImageMate All-In-One) .

For smaller data transfers or, perhaps other applications on other computers this UNI USB-C reader may operate okay. I cannot say without testing it myself in a reliability lab for months on end. The OEM making these should have done a DOE and all the Environmental and Reliability Testing to ensure thermal runaway was not an issue. It is an issue that warrants attention.

SUMMARY: Great form factor. No fitment issues. (Note: I hope users are aware of the direction the cards go in. It sounds like some are jamming the cards in in the incorrect orientation. I had no fitment issues on the 2021 model. Transfer speeds were quick. Hundreds of GBs of data were moved without corruption.

The only anomaly or issue rather of concern is the thermal rise at the SD card level. If they are using the body of the device as a heat sink to wick heat away from the components inside, I get that aspect. It is a very small form factor but, the question is where is the heat originating: The card or the electronics inside? I would not take a chance on a scorching hot memory card being reliable and holding out for any length of time - especially on repeated thermal shocks like what this device subjects cards to.

20 people found this helpful

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Ron Erese

Basic, budget friendly adapter

Reviewed in the United States on July 9, 2024

Color: GreyVerified Purchase

I lost my card reader from before and purchased this to move data from Micro SD cards from my dashcam, video camera, 35mm camera, and drone to back up on my computer. Every device these days uses a card of some sort, and this is able to work with all of the ones I have. I like that it connects to my Mac via USB or USB-C, the latter I haven't even got to use yet. I would recommend this product for sure because it is compact, versatile and has been a great value. I hope this review help!

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Marco Aguilar

Excelente adaptador

Reviewed in Mexico on May 27, 2024

Color: GreyVerified Purchase

Funciona perfectamente como debería, conecta al celular con funda sin problemas y también a mí laptop. Lee y transfiere la información de las tarjetas rápidamente. Lo utilicé con tarjetas de 4GB hasta uno de 256GB de alta velocidad y no tuvo problemas. Hasta puedes conectar un micro SD y SD al mismo tiempo y los dos te los lee sin problemas (como puedes observar en mi compu).

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E & R P.

It works as it should.

Reviewed in Canada on May 24, 2024

Color: GreyVerified Purchase

Small, convenient and it works on both ends: usb and c. And the price was right…. Zero issues.

One person found this helpful

ANASON S HALEES

Good quality

Reviewed in Saudi Arabia on July 23, 2024

Color: GreyVerified Purchase

Good quality product as described
Fast delivery

NORBERTO BOUZO

Funciona bien y de forma muy sencilla

Reviewed in Spain on July 20, 2024

Color: GreyVerified Purchase

He comprado este pendrive con lector para tarjetas porque el tarjetero de mi PC de sobremesa ya no era reconocible y dejó de funcionar.

Este funciona muy bien, tiene 2 USB's, uno de ellos es un USB A azul, que es el de toda la vida, pero de alta velocidad, pues es un 3.0, y en el otro extremo del pendrive trae un USB C, para conectarlo a un móvil de última generación.

Solo hay que insertarle la tarjeta en la ranura de su tarjetero (admite una gran variedad de tarjetas, tanto SD como micro SD) y conectarlo al puerto USB del ordenador o portátil. No hay que instalar drivers ni ninguna otra cosa, pues inmediatamente el PC lo reconoce.

Estoy muy contento con la compra, que además ha sido a un precio estupendo.

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De Ward

Kleine kaartlezer voor 2 types kaarten werkt perfect

Reviewed in Belgium on July 15, 2024

Color: GreyVerified Purchase

Voor weinig geld een zeer goed toestel. Heeft weinig plaatst nodig omdat het niet groter is dan een USB-stick. Ik heb verschillende geheugenkaarten. Van 10 jaar oud tot de nieuwste "extreme, supersnel" voor onder andere een 4K videocamera. Al mijn geheugenkaarten worden herkend.
Dit is een koopje.

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Amazon Prime includes:

uni SD Card Reader, High-Speed USB C to Micro SD Card Adapter USB 3.0 Dual Slots, Memory Card Reader for SD/Micro SD/SDHC/SDXC/MMC, Compatible with MacBook Pro/Air, Chromebook, Android Galaxy

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