| RAM | 64 GB |
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SanDisk Ultra 64GB MicroSDXC Class 10 UHS Memory Card Speed Up To 30MB/s With Adapter - SDSDQUA-064G-U46A [Old Version]
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| Brand | SanDisk |
| Flash Memory Type | SDXC |
| Memory Storage Capacity | 64 GB |
| Compatible Devices | Tablet, Smartphone |
| Color | Silver/red |
About this item
- Make sure this fits by entering your model number.
- Up To 30MB/s Read Speed
- 10-Year Warranty
- Easily Back Up Files With "SanDisk Memory Zone" App
- Compatible For Android Smartphones & Tablets
- Class 10 Performance For Full HD Video
- Includes SD Adapter
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This item SanDisk Ultra 64GB MicroSDXC Class 10 UHS Memory Card Speed Up To 30MB/s With Adapter - SDSDQUA-064G-U46A [Old Version] | SanDisk 64GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 170MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAH-064G-GN6MA | Lexar 64GB Micro SD Card, microSDXC UHS-I Flash Memory Card with Adapter - Up to 100MB/s, A1, U3, Class10, V30, High Speed TF Card | SAMSUNG EVO Select Micro SD -Memory -Card + Adapter, 64GB microSDXC 130MB/s Full HD & 4K UHD, UHS-I, U1, A1, V10, Expanded Storage for Android Smartphones, Tablets, Nintendo -Switch (MB-ME64KA/AM) | SanDisk Ultra SDSQUNS-128G-GN6MN 128GB 80MB/s UHS-I Class 10 microSDXC Card | SanDisk 128GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-128G-GN6MA | |
|---|---|---|---|---|---|---|
| Customer Rating | 4.6 out of 5 stars (51613) | 4.8 out of 5 stars (33974) | 4.7 out of 5 stars (9493) | 4.7 out of 5 stars (40365) | 4.7 out of 5 stars (30371) | 4.8 out of 5 stars (345519) |
| Price | $9.98$9.98 | $11.23$11.23 | $9.99$9.99 | $14.99$14.99 | $13.61$13.61 | $16.84$16.84 |
| Sold By | First Choice Online | Amazon.com | Longsys official store | Amazon.com | CWP Online | Amazon.com |
| Computer Memory Size | 64 GB | 64 GB | 64.0 GB | — | 128 GB | 128 GB |
| Digital Storage Capacity | 64 GB | 64 GB | 64 GB | 64 GB | 128 GB | 128 GB |
| Flash Memory Type | SDXC | Micro SDXC | Micro SDXC | Micro SDXC | Micro SDXC | Micro SDXC, Micro SD |
| Item Dimensions | 0.31 x 0.59 x 0.43 inches | 0.04 x 0.59 x 0.43 inches | 0.43 x 0.59 x 0.04 inches | 6.5 x 9 x 0.39 inches | 0.59 x 0.43 x 0.04 inches | 0.04 x 0.59 x 0.43 inches |
| Item Weight | 0.32 ounces | 0.35 ounces | — | — | 0.35 ounces | 0.16 ounces |
| Memory Storage Capacity | 64 GB | 64 GB | 64.00 GB | 64 GB | 128 GB | 128 GB |
| Secure Digital Association Speed Class | Class 10 | Class 10 | Class 10 | Class 10 | Class 10 | Class 10 |
| Size | 64GB | 64GB | — | 64GB | — | 128GB |
Product information
Technical Details
| Brand | SanDisk |
|---|---|
| Item model number | SDSDQUA-064G-U46A |
| Item Weight | 0.32 ounces |
| Product Dimensions | 0.31 x 0.59 x 0.43 inches |
| Item Dimensions LxWxH | 0.31 x 0.59 x 0.43 inches |
| Color | Silver/red |
| Voltage | 1 Volts |
| Manufacturer | SanDisk |
| ASIN | B007WTAJTO |
| Is Discontinued By Manufacturer | No |
| Date First Available | April 6, 2012 |
Additional Information
| Customer Reviews |
4.6 out of 5 stars |
|---|---|
| Best Sellers Rank | #688 in Micro SD Memory Cards |
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Product Description
Size:64GB | Product Packaging:Standard Packaging SanDisk 64GB Class 10 UHS-I microSDXC Memory Card w/SD AdapterSanDisk 64GB Class 10 UHS-I microSDXC Memory Card w/SD Adapter SanDisk 64GB Class 10 UHS-I microSDXC Memory Card SanDisk 64GB Class 10 UHS-I microSDXC Memory CardGeneral Features: Type: microSDXC Capacity: 64GB Speed Class Rating: Class 10 UHS-I Includes SD Card Adapter Compact and portable SanDisk 64GB Class 10 UHS-I microSDXC Memory Card microSD Adapter Notes: P/N: SDSDQUA-064G-U46A UPC: 6 19659 07865 2Product Requirements: Device with a microSDXC slot
Customer reviews
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To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonReviewed in the United States on September 27, 2012
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So my lovely wife bought me a Samsung Galaxy Tab 4 for Father's Day and I've been loving it ever since. Just as other with Samsung products, the Galaxy Tab 4 has the ability to add a microSD card to expand the memory on the device. Since it's been over a year, I decided to do some more research to see if SanDisk offered anything new. As of 6/19/2014, their product lineup for microSD cards from worst to best (performance-wise) are the as follows:
SanDisk
SanDisk Ultra
SanDisk Ultra PLUS
SanDisk Extreme
SanDisk Extreme PLUS
SanDisk Extreme PRO
Now, the difference between all of these cards are simply the speed in which you can read/write data to the card. Yes, the published rating of most all these cards (except the SanDisk regular) are Class 10/UHS-I but that's just a rating... Actual real world performance does get better with each model, but with faster cards come more expensive prices. Since Amazon doesn't carry the Ultra PLUS model of microSD card, I had to do direct comparisons between the SanDisk Ultra ($34.27), Extreme ($57.95), and Extreme PLUS ($67.95).
As mentioned in my earlier review, I purchased the SanDisk Ultra for my Galaxy S4. My question was, did I want to pay over $20 more for a card that is faster than the one I already owned? Or I could pay almost double to get SanDisk's 2nd-most fastest microSD card.
The Ultra works perfectly fine for my style of usage (storing/capturing pictures & HD video and movie playback) on my phone. So in the end, I ended up just buying another SanDisk Ultra 64GB card. I use my cell phone *more* than I do my tablet and if the card is good enough for my phone, it's good enough for my tablet. I don't own a 4K HD camera or anything like that, so I honestly didn't see a need to get one of the faster cards at this time.
I am now a proud owner of 2 SanDisk Ultra cards and have absolutely 0 issues with it in my Samsung devices.
I haven't had to buy a microSD card in a long time. The last time I bought one was for my cell phone over 2 years ago. But since my cellular contract was up, I knew I would have to get a newer card in addition to my new phone, the Samsung Galaxy S4. Reason for this is because I knew my small 16GB microSD card wasn't going to cut it.
Doing research on the Galaxy S4, I wanted to get the best card possible that had decent capacity (32 GB or greater). This led me to find that the Galaxy S4 supports the microSDXC Class 10 UHS-I card, which is the fastest possible given that class. Searching for that specifically on Amazon gave me results of only 3 vendors (as of April) that makes these microSDXC Class 10 UHS-1 cards. They are Sandisk (the majority), Samsung and Lexar. Nobody else makes these that are sold on Amazon.
Seeing how SanDisk is a pretty good name out of the 3 (I've used them the most), I decided upon the SanDisk because Lexar was overpriced and the Samsung one was overpriced (as well as not eligible for Amazon Prime).
But the scary thing is that when you filter by the SanDisk, you literally get DOZENS of options. All of them have different model numbers, different sizes, etc. Then there's that confusion of what's the difference between SDHC & SDXC?
SDHC vs SDXC:
SDHC stand for "Secure Digital High Capacity" and SDXC stands for "Secure Digital eXtended Capacity". Essentially these two cards are the same with the exception that SDHC only supports capcities up to 32GB and is formated with the FAT32 file system. The SDXC cards are formatted with the exFAT file system. If you use an SDXC card in a device, it must support that file system, otherwise it may not be recognizable and/or you have to reformat the card to FAT32.
FAT32 vs exFAT:
The differences between the two file systems means that FAT32 has a maximum file size of 4GB, limited by that file system. exFAT on the otherhand, supports file sizes up to 2TB (terabytes). The only thing you need to know here really is that it's possible your device doesn't support exFAT. If that's the case, just reformat it to FAT32. REMEMBER FORMATTING ERASES ALL DATA!
To clarify the model numbers, I I hopped over to the SanDisk official webpage. What I found there is that they offer two "highspeed" options for SanDisk cards. These are SanDisk Extreme Pro and SanDisk Ultra. SanDisk Extreme Pro is a line that supports read speeds up to 95MB/sec, however they are SDHC only. To make things worse, they are currently only available in 16GB & 8GB capacities. Since one of my requirements was to have a lot of storage, I ruled these out.
The remaining devices listed on Amazon's search were the SanDisk Ultra line. But here, confusion sets in because SanDisk separates these cards to two different devices. Cameras & mobile devices. Is there a real difference between the two or is this just a marketing stunt? Unfortunately I'm not sure but I do know the price difference between the two range from a couple cents to a few dollars. Since I wasn't sure, I opted for the one specifically targeted for mobile devices (just in case there is some kind of compatibility issue). To find the exact model number, I would go to Sandisk's webpage (sandisk.com) and compare their existing product lineup. From there, you get exact model numbers and you can then search Amazon for these model numbers. That is how I got mine (SDSDQUA-064G).
As for speed tests, I haven't run any specific testing, but copying 8 GB worth of data from my PC to the card literally took just a few minutes.
One last note is that Amazon attaches additional characters to the end (for example SDSDQUA-064G-AFFP-A vs SDSDQUA-064G-U46A). The difference between the two is that the "AFFP-A" means "Amazon Frustration Free Packaging". Other than that, these are exactly the same. If you're wondering what I got (and want to use it in your Galaxy S4), I got the SDSDQUA-064G-u46A and it works like charm.
This SanDisk Ultra 32 GB microSDHC Class 10 UHS-1 card (SDSDQUA-032G-U46A) , however, proves to be the exception. It achieved a sequential write speed of over 10MB/s according to two different benchmark programs (11.8MB/s in "CrystalDiskMark", 10.6MB/s in "H2testw v1.4"). This is faster than all my other microSDHC cards, including two 'class-10' cards from PNY and Polaroid .
A closer look at the file transfer speed using "Flash Memory Toolkit" revealed another nice surprise: For writing small files, this Sandisk Ultra microSDHC card performed just as well as its full-size counterpart, the SanDisk Ultra SDHC (SDSDU-032G-AFFP) . In contrast, all my other class-10 microSDHC cards perform poorly while writing smaller files. See the benchmark results I uploaded to 'Customer Images' for details.
When you use a memory card in a digital camera to record HD video, it needs to store a huge video file each session. That means its sequential write speed is most critical. When used in a tablet or a smart phone, however, the card's random write speed for small files is more important. That's why in such applications, the Sandisk microSDHC will perform faster than the PNY and Polaroid cards, even though they are also rated as 'class-10'.
[Bottom Line]
As of this writing, the Sandisk Ultra microSDHC card ia actually priced lower than other class-10 cards from PNY and Polaroid. This makes the Sandisk the best value - especially if you need honest class-10 performance across all platforms.
[Side Notes]
- Do not confuse this Sandisk Ultra card with SanDisk Mobile Ultra microSDHC (SDSDQY-032G-U46A) . The latter is rated for class-6 only.
- The size of this '32GB' card is 29.7GB according to my computer. This is actually normal because computer people count one Gig as "2 to the power 30", which is 7.3% larger than one billion. So 29.7GB translates to 31.9 billion bytes, which is '32GB' according to marketing people.
[Update on Feb 4, 2013]
1. Amazon combined the Sandisk Ultra 32GB and 64GB cards on the same product page. Please beware that your intended appliance must be compatible with 'SDXC' in order to used the 64GB version. My original review refers to the 32GB 'SDHC' version.
2. There are two part numbers for the same card. If you start from the Amazon product page and select 'Retail Packaging', you'll see the part number of SDSDQUA-032G-U46A. But if you click on 'Frustration Free Package', the part number changes to SDSDQU-032G-AFFP-A.
[Update on Oct 5, 2013]
The Sandisk microSDHC card works great in my new Samsung Galaxy S3, without the need for reformat (the default format is FAT32)
[Update on Dec 26, 2013]
My old test results were limited by the card reader and USB 2.0 port used. I re-tested the Sandisk UHS1 micro card using the Transcend RDF5 Card Reader connected to an USB 3.0 port. Here are the results from 'CrystalDiskMark 3.01 x64':
- Sequential Read speed = 40.0MB/s (was 34.8MB/s when connected to USB 2.0 port)
- Sequential Write speed = 13.1MB/s (was 12.6MB/s when connected to USB 2.0 port)
By NLee the Engineer on September 26, 2012
This [[ASIN:B007XZM6VG SanDisk Ultra 32 GB microSDHC Class 10 UHS-1 card (SDSDQUA-032G-U46A)]], however, proves to be the exception. It achieved a sequential write speed of over 10MB/s according to two different benchmark programs (11.8MB/s in "CrystalDiskMark", 10.6MB/s in "H2testw v1.4"). This is faster than all my other microSDHC cards, including two 'class-10' cards from [[ASIN:B005BOMU3K PNY]] and [[ASIN:B007RI5W4M Polaroid]].
A closer look at the file transfer speed using "Flash Memory Toolkit" revealed another nice surprise: For writing small files, this Sandisk Ultra microSDHC card performed just as well as its full-size counterpart, the [[ASIN:B007M51J3I SanDisk Ultra SDHC (SDSDU-032G-AFFP)]]. In contrast, all my other class-10 microSDHC cards perform poorly while writing smaller files. See the benchmark results I uploaded to 'Customer Images' for details.
When you use a memory card in a digital camera to record HD video, it needs to store a huge video file each session. That means its sequential write speed is most critical. When used in a tablet or a smart phone, however, the card's random write speed for small files is more important. That's why in such applications, the Sandisk microSDHC will perform faster than the PNY and Polaroid cards, even though they are also rated as 'class-10'.
[Bottom Line]
As of this writing, the Sandisk Ultra microSDHC card ia actually priced lower than other class-10 cards from PNY and Polaroid. This makes the Sandisk the best value - especially if you need honest class-10 performance across all platforms.
[Side Notes]
- Do not confuse this Sandisk Ultra card with [[ASIN:B005SZ4X28 SanDisk Mobile Ultra microSDHC (SDSDQY-032G-U46A)]]. The latter is rated for class-6 only.
- The size of this '32GB' card is 29.7GB according to my computer. This is actually normal because computer people count one Gig as "2 to the power 30", which is 7.3% larger than one billion. So 29.7GB translates to 31.9 billion bytes, which is '32GB' according to marketing people.
[Update on Feb 4, 2013]
1. Amazon combined the Sandisk Ultra 32GB and 64GB cards on the same product page. Please beware that your intended appliance must be compatible with 'SDXC' in order to used the 64GB version. My original review refers to the 32GB 'SDHC' version.
2. There are two part numbers for the same card. If you start from the Amazon product page and select 'Retail Packaging', you'll see the part number of SDSDQUA-032G-U46A. But if you click on 'Frustration Free Package', the part number changes to SDSDQU-032G-AFFP-A.
[Update on Oct 5, 2013]
The Sandisk microSDHC card works great in my new Samsung Galaxy S3, without the need for reformat (the default format is FAT32)
[Update on Dec 26, 2013]
My old test results were limited by the card reader and USB 2.0 port used. I re-tested the Sandisk UHS1 micro card using the [[ASIN:B009D79VH4 Transcend RDF5 Card Reader]] connected to an USB 3.0 port. Here are the results from 'CrystalDiskMark 3.01 x64':
- Sequential Read speed = 40.0MB/s (was 34.8MB/s when connected to USB 2.0 port)
- Sequential Write speed = 13.1MB/s (was 12.6MB/s when connected to USB 2.0 port)
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I bought this card about 1-2 years ago and it performed great, although, recently it started failing writing. Card contents could be read, but not written and literally nothing can be done. I have filed a waranty claim for that. This shows 1 huge benefit on Ultra series micro SDs the "Lifetime" waranty (10 years in regions where lifetime is not recognized).
I bought another one a few days ago just because the first one performed well and I need a working micro SD for my phone while current one is being replaced.
I tested both cards with h2testw utility after purchase. They were both the same capacy (64gb) as expected, so they are not fakes.
That aside both cards have had similar read write speeds:
Write: 11.6MB/s, Read: 17.8MB/s during the test.
During normal use
Write: 9-11MB/s, Read: 13-15MB/s whenever I paid attention.
Keep in mind both are peak rates, and you will only get them when copying fairly large files. High amount of small files the average speed.
-Step one Google and download Verbatim FAT32 tool (win 7)
-Step two, place the card into the provided adapter and then into an SD card reader on your windows 7 pc/laptop
-Step three, open verbatim tool and select the drive with 59.4 GB and confirm format
-Step four once format to FAT32 was successful, insert the card into your Sony Xperia T and begin using, you now have 59.4GB to use on top of your in-built 16GB
First impressions and the card performs much faster than my old c4 Sandisk which would avg @3MB sec write this card seems to easily manage 6MB sec (twice as fast), videos, music and apps all work flawlessly off it and load faster than off the old card, so if you want to keep your phone's performance slick, use a card at least as fast as this to avoid bottle-necking performance. the only thing to bear in mind about FAT32 is that no single file can exceed 4GB in size eg long hq HD video's, however you'll run into the same issue with 16 and 32GB cards as they also use FAT32 format.
In conclusion, if like me you like to carry around huge amounts of music and video's on your phone and don't want to spend stupid money on an SD card then this is the perfect solution, it's great value, it's very fast and can even work on supposedly non-compatible devices.
I could use it in my camera, which I can't with a USB drive.
However it died pretty quickly, which is better than dying later after trusting it to store lots of stuff.
I work for a company that makes a product that uses SD card storage, and a colleague thoroughly tested several brands of card.
SanDisk were consistently good, others were sometimes good or bad. So I will still buy SanDisk as first choice.
My colleague said that memory cards were such a commodity item that there is enormous economic pressure to sell cheap USB card readers and not follow the specs regarding hot plugging and static discharge protection. In the drive to get more storage there is less room for electrostatic protection circuitry. With so many products using them, it is hard to tell if the card or the host device are to blame.
I returned the dead card and bought a lower capacity SD card for my camera, and a 32G USB drive for backing up my critical work. USB drives are designed to be hot-plugged and a flaky card-reader can't add problems.
Give this (and other) cards a bit of a workout with your particular equipment before relying on it to get your photos home. And even then, copy contents elsewhere asap just in case the card dies.
One of the comments I'd read previously had suggested that the required re-formatting (which I didn't have to do) would obviously give you more memory on your phone but might limit whether you could put very large files such as movies on the card i.e. you could put 59 files at 1GB each but might not be able to put 10 files at 5.9GB on it. I haven't copied any massive files onto the card yet (and am unlikely to, as I mainly use it for photos and music) but I suspect that it wouldn't be a problem on the Xperia Z as I didn't have to format the card.
One learning from this then is that it might be worth checking what storage your phone recognises before formatting/re-formatting your card, as it might not need to be done.
Reading reviews of other SD cards, I note a few people mention trying a different brand after problems with SanDisk. Maybe they turn out a duff batch from time to time???







































