Brand | ProGrade Digital |
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Item Weight | 7.2 ounces |
Product Dimensions | 2.79 x 2.79 x 0.71 inches |
Item Dimensions LxWxH | 2.79 x 2.79 x 0.71 inches |
Color | Black |
Manufacturer | ProGrade Digital Incorporated |
ASIN | B07M68C7V5 |
Is Discontinued By Manufacturer | No |
Date First Available | October 24, 2018 |
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SD UHS-II Dual-Slot Memory Card Reader by ProGrade Digital | USB 3.2 Gen 2 for Professional Filmmakers, Photographers & Content Creators
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Brand | ProGrade Digital |
Media Type | SDXC, SD Card |
Color | Black |
Compatible Devices | Laptop |
Item Dimensions LxWxH | 2.79 x 2.79 x 0.71 inches |
About this item
- Make sure this fits by entering your model number.
- DO MORE OF WHAT YOU LOVE: Because the ProGrade Digital™ USB 3.2 Gen 2 Dual-Slot SD™ UHS-II memory card reader transfers your data at lightning speed - up to 1.25GB/s (10Gb/s) from both cards simultaneously - you can spend more time creating and less time waiting on downloads.
- DESIGNED FOR LIFE ON THE ROAD: Wherever you go, your included adhesive metal plate attaches the magnetic card reader to your laptop to create a compact mobile workstation. Streamline your workflow on a mountaintop, backseat of a ride, or anywhere else your life takes you.
- PRO LEVEL CONFIDENCE: When success depends on your equipment, you need the very best. The ProGrade Digital SD UHS-II card reader is expertly engineered to outperform the competition as the strongest link in your photography, video, audio or digital imaging workflow.
- BUILT BETTER: The ProGrade Digital Dual SD UHS-II memory card reader is precision manufactured to outlast the toughest conditions you can throw at it and still perform faster than the rest. Refresh Pro™ enabled, it’s never been easier to ensure optimal performance from your ProGrade Digital memory cards.
- ORDER NOW to GET AN INDUSTRY-LEADING 2 YEAR WARRANTY: ProGrade’s unwavering commitment to the best service, quality, and reliability, means you’re covered by a 2-year warranty. If anything goes wrong, we’ll replace, repair or refund your item.
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Product Description





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Product information
Technical Details
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Customer Reviews |
4.7 out of 5 stars |
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Best Sellers Rank | #182 in Computer Memory Card Readers |
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Reviewed in the United States on January 30, 2020
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Top reviews from the United States
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This worked well, without a problem at all. It still needed overnight to transfer the music but it can only go as fast as the memory card. I used the USB C fast data on the computer and this. Given the amount of data it worked as fast as I could expect.
Offloading (2) 128GB Sony "M" cards, I'm getting a combined 480MB/s to my computer. This is close to the maximum rated speed of the cards and much faster than any other multi-reader I have ever used. Note that I am offloading to an NVME SSD with a very high write speed. Offloading to a slower SSD (or a mechanical hard drive) will result in much slower speeds.
I received two cables with reader - USB 3.1 gen 1 A-C and a USB 3.1 gen 2 C-C. I am using the gen 2 C-C cable and getting the expected speeds to my computer.
Be aware that these cables are only about 18.6" long and were intended for use with a laptop I guess. I found I could not extend the cable from my office desk to my computer tower, so I had to put the reader on top of the tower instead. Not an ideal solution, but the product works so well I don't care too much. A 3 foot long gen 2 C-C cable is about $16 if you decide you need a longer cable.
If you're only offloading one card at a time, other readers are a better value. But if you need to offload fast cards at a time, this is by far the best option I've found.

Reviewed in the United States 🇺🇸 on January 30, 2020
Offloading (2) 128GB Sony "M" cards, I'm getting a combined 480MB/s to my computer. This is close to the maximum rated speed of the cards and much faster than any other multi-reader I have ever used. Note that I am offloading to an NVME SSD with a very high write speed. Offloading to a slower SSD (or a mechanical hard drive) will result in much slower speeds.
I received two cables with reader - USB 3.1 gen 1 A-C and a USB 3.1 gen 2 C-C. I am using the gen 2 C-C cable and getting the expected speeds to my computer.
Be aware that these cables are only about 18.6" long and were intended for use with a laptop I guess. I found I could not extend the cable from my office desk to my computer tower, so I had to put the reader on top of the tower instead. Not an ideal solution, but the product works so well I don't care too much. A 3 foot long gen 2 C-C cable is about $16 if you decide you need a longer cable.
If you're only offloading one card at a time, other readers are a better value. But if you need to offload fast cards at a time, this is by far the best option I've found.

Regarding performance. I tested this SD card reader with a Transcend V90 card and was extremely pleased with the performance. I'm confident this card reader will be able to max out all V90 cards' advertised read/write speeds when utilizing the proper USB port. The aforementioned card has an advertised read speed of 285 MB/s and write speed of 180 MB/s. I saw SUSTAINED read speeds of 282 MB/s and write speeds of 176 MB/s.
I tested the card reader with the following motherboards and their corresponding USB ports:
Gigabyte X570 USB 3.2 Gen 2:
282 MB/s read & 176 MB/s write
MSI B450 USB 3.1 Gen 2:
273 MB/s read & 172 MB/s write
MSI B450 USB 3.1 Gen 1:
274 MB/s read & 172 MB/s write
Asus Z97 USB 3.0:
264 MB/s read & 180 MB/s write
USB 2.0:
39 MB/s read & 39 MB/s write
The test was performed by cutting and pasting approximately one dozen 1 GB files from the SD card to the desktop and back to the SD card. My assumptions based on the tests is that any USB 3.1 Gen 1 or better will max out the V90 cards' advertised performance. What is interesting is the USB 3.0 write test sustained 180 MB/s better than any other port. There could be other variables though including chipset, CPU, etc.
Anyhow, this card reader is definitely worth it. I'm confident it is future proof regarding UHS-II standards.

Regarding performance. I tested this SD card reader with a Transcend V90 card and was extremely pleased with the performance. I'm confident this card reader will be able to max out all V90 cards' advertised read/write speeds when utilizing the proper USB port. The aforementioned card has an advertised read speed of 285 MB/s and write speed of 180 MB/s. I saw SUSTAINED read speeds of 282 MB/s and write speeds of 176 MB/s.
I tested the card reader with the following motherboards and their corresponding USB ports:
Gigabyte X570 USB 3.2 Gen 2:
282 MB/s read & 176 MB/s write
MSI B450 USB 3.1 Gen 2:
273 MB/s read & 172 MB/s write
MSI B450 USB 3.1 Gen 1:
274 MB/s read & 172 MB/s write
Asus Z97 USB 3.0:
264 MB/s read & 180 MB/s write
USB 2.0:
39 MB/s read & 39 MB/s write
The test was performed by cutting and pasting approximately one dozen 1 GB files from the SD card to the desktop and back to the SD card. My assumptions based on the tests is that any USB 3.1 Gen 1 or better will max out the V90 cards' advertised performance. What is interesting is the USB 3.0 write test sustained 180 MB/s better than any other port. There could be other variables though including chipset, CPU, etc.
Anyhow, this card reader is definitely worth it. I'm confident it is future proof regarding UHS-II standards.


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I did reach out to their support but didn't appear to be interested and passed the buck over to Apple.
"We do not know if this a bug in Ventura or if it was designed that way intentionally.
After offloading all your needed data, please perform a 'Level 2 Secure Format' through disk utility and try again. We would also suggest reporting this to Apple."



Okay I should be able to read at around 480MB/s according to the specs but this isn't true. Having said that I've tried loads of cheaper cards and they are nowhere near the performance of this hence 4 stars rather than 5. it's still a very good product though and in my opinion worth the extra money.

But it's too expensive unless you need to read cards in a hurry every day
You need to have USB 3 rev 2 ports on your Apple/PC to get the high speeds
Attaching this to a USB 3.0 or worse, 2.0 USB socket will give you slow transfer rates, and there is certainly no justification to buy this