나의 이야기..

qoo10 에서 22달러에 팔고 있는데, 쓸만한 물건인지 궁금해졌다.

국내에는 별다른 평이 없어서 미국 아마존을 보니 페이크 128gb라는 글이 대부분이다.

즉, 사용하려고 하면 8gb만 가능한 경우가 대부분이라고. 

결론은 돈값도 못하는 물건.

https://www.amazon.com/gp/aw/review/B072BY7Z9V/R3SXBERMG4NQ9I/ref=cm_cr_dp_mb_rvw_1?ie=UTF8&cursor=1

http://www.amazon.com/gp/aw/review/B072BY7Z9V/R3SXBERMG4NQ9I/ref=cm_cr_dp_mb_rvw_1?ie=UTF8&cursor=1


Seems too good to be true? It usually is! *** YOUR DATA IS AT RISK ***

ByTom Nimitzon May 27, 2017

Beware of fake capacity SD memory cards. This and many other cheap, apparently-high-capacity SD memory cards are often low capacity 8GB or 16GB cards that have been hacked (controller chip settings altered) by dishonest Chinese suppliers so that they show a false inflated capacity. That is why their price is so low. These cards are then redistributed by many clueless resellers and by many other fully-aware resellers who are out to make a quick profit.

Such cards will show their false capacity both in your phone and in Windows properties, and they will even work normally under low usage. However, once their true (low) capacity is exceeded, they will quietly lose or corrupt your valuable data. Files will look okay in their folders, but will be corrupt when viewed, played, or otherwise read back. Your photos, videos, music, contact list, and other data will be irretrievably lost.

Be especially wary of cards with a stated capacity of 64GB or above marked as "SDHC" (not "SDXC"). The SD card association controls and licenses the SD card standards and they define "SDHC" up to a maximum capacity of 32GB. For larger capacity cards, only the "SDXC" standard is valid.

Good 128GB SD cards are out there, but they will conform to the SDXC standard and will be clearly marked as such. Expect to pay roughly $18 and up for 64GB (as of Q1 2017) and about twice that for 128GB cards.

If you do buy a low-priced card, the first thing you should do is test the capacity using a utility called h2testw. This will fill the card with data and then verify that it can be read back intact. The write phase usually completes without error. It is the verify phase that exposes the fake capacity. Testing the first 32GB is usually sufficient.

You can also test by filling the card up to at least 30% with videos or other large media files and then *most importantly* check to see if they can be played back. If the capacity is faked, the first few will play, but past some point, the rest will be corrupt.

Do not trust the capacity or space remaining shown in the properties display - that is exactly what is faked.

Search for "fake capacity flash" using your favorite search engine for more information.

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