ADATA Premier Micro SDHC UHS-1 U1 CLASS10 64GB Memory Card w/ Adapter

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Update: just wanted to share with others that it is still flawless after 4 months of use. Mostly in GoPro! What a phenomenal deal. Now it's even cheaper. Definitely recommending it to anyone! ----Bought one on sale at $30 to use in my GoPro H3+B for a month in Europe. Can't really complain. Didn't have any issues at all! No locking up, no corrupt files, and no "formatting required" issues that may be seen in reviews on the web. So far very satisfied with the purchase. (I was actually on the fence between this one and the Kingston Class 10 one since the price point was pretty much the same. Namely personally I've always used exclusively SanDisk cards with my DSLR, and also Lexar and Kingston in my other cameras, so I know those are reliable. Had no previous experience with ADATA... in fact for some reason had a perception it was not a reliable brand -perhaps due to lower price point. But so far very satisfied. (However, take this with a grain of salt since I had it for just over a month; the time will tell if it's reliable as the above mentioned brands. - Will provide an update  if there are any issues. For now totally recommending it due to affordability. This review was modfied by poster @ 09-10-14 04:22 PM

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Works great in my xperia z1 compact. Very fast

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Hard to really find any faults with this product. Plenty of storage (actual capacity is 58.8GB), reads at 40+MiB/s, writes at 20+ MiB/s. Great for expanding storage for a tablet/tablet PC. It's also UHS capable, so if you have a compatible device you should see r/w speeds much higher than standard Class 10 cards.

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very solid card for it's price.

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This product has been great for me on my Windows 8 tablet. Moving files to and from the main tablet storage is very fast, and the large expansion in size is the only reason the tablet is usable for work.

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40-50 m/s read 22-24m/s wite speed at this price, really can't complain.

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Great deal on this card, grabbed a few as a result. Works great in my phone and tablet for stills and video. So far no issues to report.Recommended.

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Before this card I had a Sandisk Ultra 64 that GoPro put on it's fail list. The issue was that it would freeze the camera if shooting in high frame rate mode. The Adata actually works in this mode and my camera now works so with this I'm done tweaking and I can move on with my life!

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Bought this to use in my Sony Xperia ZL. Showed a capacity of 58.87GB after installation. Works as advertized and gives good value for the price, what more can you ask for?

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This card performs very well. Right from the beginning, this card performs very fast in my Samsung i747m.Was a little concern about reliability before I bought this card after reading quite a few negative reviews in multiple websites but had been using it for 4 months without any issue as all.I speed tested it the first day I got the card, and yesterday. The combined result is as below.Peak Read Speed: 38.48 MB/sPeak Write Speed: 29.61 MB/sAverage Read Speed: 37.44 MB/sAverage Write Speed: 28.11 MB/s

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I've only just got this card and have only used it on my PC as I have yet to get the device that I will be using for it. I used H2testw v1.4 on my PC and received the following info after a full test on the card:Writing speed: 16.3 MByte/sReading speed: 19.4 MByte/s

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I got this and put it on my tablet. It's as fast as it can be! For the price, this really bring value. I love it! Highly recommended.

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I purchased this for my tablet to store some videos and it is doing the job just fine. Copy speeds hits class 10 ratings but nothing beyond that. I'm happy with the product especially given the price. It hasn't failed yet, my only concern is that this is my first ADATA product and I have no idea how good their post-purchase support is.

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I picked this card up today and promptly went home and did some ATTO tests on it. Results were surprisingly good and better than a Sandisk micro SD 64GB card with the same speed rating.Using a Kingston USB 3.0 card reader I got these results:At 4KB size write speed was 2MB/sec and 4.5MB/sec readAt 64KB and larger size write speed was 22MB/sec and 45MB/sec readNOT BAD AT ALL!! The Sandisk performed comparably except it topped out at 10MB/sec write speed.I also tested it with the laptop's built-in USB 2.0 card reader. Surprisingly the 4KB speeds were better at 5MB/sec and 6.5MB/sec but max write and read speeds topped out at 18MB/sec and 27MB/sec.Don't know about long term reliability but in all my years, I've only had one SD card fail about 10 Years ago (bought it from eBay so maybe that had something to do with it.)Next I'm going to load it up with videos and make sure it is the rated capacity. If something goes wrong I'll edit this review.At the sale price, you can't beat it.

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Very fast card, not sure why others are complaining about speed, perhaps it's their devices/ports:h2testw results:Warning: Only 60270 of 60271 MByte tested.Test finished without errors.You can now delete  the test files *.h2w or verify them again.Writing speed: 19.6 MByte/sReading speed: 39.8 MByte/sH2testw v1.4Works well in all of my systems and devices, including dashcams. Please note that windows XP requires a hotfix to utilize these cards properly. (I forgot the KB#)

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I am using this card as storage for my 64 GB tablet and while it is not as fast as I would have expected of a UHS-1 card, I am pretty satisfied with it. There was no significant issues running Eclipse from the microSD, therefore I am satisfied.

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I was expecting this card to be lightning fast but it feels a bit slower than my old 32GB class 10 card. Some of that might have to so with the phone that it is in (Samsung S4) as I have always had issues with SD cards in that phone. Other than that it is a good card.

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Worked great on my windows 8 and w7 ultimate mashine. However 2 of my phones did not recognize it along with my camcorder. This was a bit of a let down as I primarily got this for the phone. make sure you chack ur phone specs properly before grabbing one of these to make sure it is compatible.

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I have bought 2 of these cards for different phones. They are fast enough for me. One is 60 percent full, and there is no noticeable slow down in transfer speeds.

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The card is decent for the price - but with this size of a card, and such mediocre speeds, it's hard to recommend. Filling it up will simply slow it down.But again, it's hard to complain when it can be had for ~$50.

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Good card overall. Not sure why it wasn't fast enough for rapid-fire camera shooting on my D-SLR (Nikon D200 - using the SD adapter). Ended up swapping it to my phone now and have no issues (Samsung GS4).