Anonyisony USB Flash Drive 512GB with Keychain Design (512GB)

I copied three folders from my external hard drive, which is connected to my PC Notebook, to this 512 GB flash drive. The sizes of those three folders are 13 GB (with 2249 files, 148 folders), 9.23 GB (with 12961 files, 450 folders), and 426 GB (with 3459 files, 300 folders). After that, I checked the flash drive and could not see any file. Only the third folder shows about 40 sub-folders but I could not see any file under any of sub-folders.I then copied five single files to the flash drive. It works. That is, I can see the files and move them to another notebook.In a test, I copied a folder of 366 MB (with 84 files and 3 folders) to the flash drive. I saw the files. But, after I unplug the drive and inserted it again, the files in that folder disappeared, although the properties of that folder indicated a usage of the space.The flash drive now shows 393 GB used space, 106 GB free space, and 499 GB capacity. I deleted all folders inside. It still shows that 393 GB is used and only 106 GB free space.I clicked on "scanning and repairing." It indicated that the drive is successfully repaired. But "Properties " of the drive still shows that 393 GB is used even though I don't see any folder/file in the drive.I formatted the flash drive and did the similar test. The 13 GB and 9.23 GB folders had no problem this time. But the 426 GB folder gave the same problem. That is, I saw only the names of about 40 sub-folders but I could not see any file under those sub-folders. Anonyisony USB Flash Drive 512GB with Keychain Design (512GB)

I use this for work. I put 12 different Linux Distro's, Medicat, FalconFour, and tons of Forensic tools on it. GREAT investment. Still have TONS of room for Client Recovery images on it. It's 2.0, but for the price, it's freaking GOLD.

Thinking that perhaps this was too good to be true for the price, I had a techie friend of mine assess it. Here is his report: Here’s the report I got on your memory stick:Warning: Only 511981 of 511983 MByte tested.The media is likely to be defective.30.0 GByte OK (62992128 sectors)66.5 GByte DATA LOST (139524352 sectors)Details:0 KByte overwritten (0 sectors)0 KByte slightly changed (< 8 bit/sector, 0 sectors)66.5 GByte corrupted (139524352 sectors)0 KByte aliased memory (0 sectors)First error at offset: 0x00000007825e0000Expected: 0x00000007825e0000Found: 0x0000000000000000H2testw version 1.3 I stopped the test at this point. It had already run overnight, and the “DATA LOST” figure was just growing. It seems that you have 30GB of useable space. Frankly, though, I wouldn’t trust it with anything that you’d be sorry to lose.

i have three of these , they all loose data , do not bother to buy , i feel dumb for buying this , i am sorry Amazon but this is poop .

Good product for a nice price

it was too good to be true, it looks good, but it is now a token on my key chain, it worked for a day.I copied gigabytes of data and now when i tried to retrieve it it was unavailable, tried data recovery but drive is not readable. save your money get a reliable drive.Now all my data is LOST.be careful

I didn’t use this product for a while because I was waiting for a project to be finished. It doesn’t work at all and now I’m past my return policy. In good faith I would like to have my money back.

This is a knock off it says it 512 gb but only about 20 gb