ADATA 8GB Class 10 Micro SDHC Flash Card Model AUSDH8GCL10-R

Pros: Price, $9 Class 10 ADATA quality Speed: Read ~25 MB/s, Write ~16 MB/s

Cons: Slower than a 3.5 year old ADATA microSDHC, which i got before they classify SDHC with numbers (Class 2, 4, 6, 10...). it has ~28 MB/s of reading and ~18 MB/s of writing.

Overall Review: Since Class 10 cards are slower than what we got before the SDHC classes was set up, what we can expect from them...... You need a very fast card reader to compare these fast cards. Please, please dont post your speed numbers from a slow card reader.

Pros: Killer streaming (sequential performance), decent random read performance Sequential Read : 23.600 MB/s Sequential Write : 17.316 MB/s Random Read 512KB : 22.659 MB/s Random Read 4KB (QD=1) : 3.553 MB/s [ 867.4 IOPS] Random Read 4KB (QD=32) : 3.955 MB/s [ 965.5 IOPS]

Cons: Pathetic random write performance (yeah, all class 10 cards stink here, put this one is pretty pathetic) Random Write 512KB : 1.051 MB/s Random Write 4KB (QD=1) : 0.010 MB/s [ 2.4 IOPS] Random Write 4KB (QD=32) : 0.009 MB/s [ 2.3 IOPS]

Overall Review: Excellent card if you're optimizing big copies (esp video). May want to consider a lower class card if you're mostly storing apps or app data

Pros: very cheap per gigabyte class 10 card not a no-name brand

Cons: None in particular

Overall Review: A-Date is not the most luxurious brand, but decent, I ordered the card because it was undeniably affordable (13.99). It's a class 10 card, which is virtually as fast as it gets, it should be able to handle any kind of transfer speed you need. If you purchase a card from a less reputable company than NewEgg they sometimes print a higher capacity on the card than it has, and sometimes even make it 'think' it is a certain size, but can't actually hold that much. With this card, it's effective space was something like 7.69 Gb, and upon testing was able to fill every bit with files. The only unknown at this point is life span, but other than that I am ecstatic!

Pros: fine until it died

Cons: premature death - meh

Pros: Great value for the price, haven't given me any problems. Works as expected. Bought for use with cell phone, and noticed faster performance over previous SD card.

Cons: None. Haven't had any problems.

Overall Review: Bought it for use with my cellphone, then received a surprise phone upgrade for my birthday. Now I gotta find my old phone and grab this card.

Pros: Very fast even in my tablet

Cons: None

Pros: This is an easy way to upgrade the speed on your phone without spending alot of money. Excellent bang for your buck. The storage cards that come with phones are generally slower, because they cost less for the cell phone companies to include with your phone. Pages all snap quicker with this card installed. Scrolling screen to screen etc. Games are faster too. A-data is a brand I've used for a while. No problems. Lifetime warranty. Back up your data anyway, and sleep better. Class 10 speeds are a reality with this card, not just hype.

Cons: UPS phantom "tried to deliver", but said I wasn't home. I was home. Twice. No ring, no knock, right address. Never seen any other shipping company do this, ever. The ol UPS "post a delivery notice and run". Usually UPS is very quick, but sometimes this strangeness.

Overall Review: Turn on "mass storage mode" or similar on your phone, plug it into a computer, copy and paste all your old files to a folder. Turn off the phone, install the new fast storage card, power up, and then copy all your files from the folder to your new card. Voila. You've just made your phone quicker, and probably given it a good deal more storage to boot. Nice job.

Pros: Does what it says

Cons: 1 card was slow until reformatted

Overall Review: I bought 2 of these, put them in 2 identical phones, one worked excellent, one was about 1/3 the speed. I used the format tool mentioned in other posts, and now the slower card is working with no problems. Applications seem to open much faster, well worth the upgrade. My informal tests vs my old 2gb card in a Samsung sidekick 4G: 2gb read - 4.2mb New 8gb read - 18mb 2gb card write - 2.3mb New 8gb write - 14.2