128GB BLACK USB 2.0 Flash Drive Memory Stick

As others have found, these drives are completely fraudulent. They have been altered to report to the computer that their capacity is 128GB, when they are in fact physically much smaller. What therefore happens is they work fine when storing files up to their true capacity (in my case, that appears to be about 12-14 GB), then beyond that the write speed becomes slow, and the drive either corrupts completely, overwrites existing files, or pretends it has written new files when in reality it hasn't, and the next time you plug the drive in they will have disappeared.

The first thing you notice about this flash drive is that it has no brand markings on it, and you hope that it is genuine. Even many branded flash drives seem to fail, according to reviews, but you buy in good faith and trust that all will be well. If you buy any flash drive, check it thoroughly immediately, and assume nothing. Make sure that any transferred file is fully useable, and don't do what I did, which is waste a lot of time transferring files, only to find that it DOES NOT WORK. Files 'corrupted', files seemingly trasferred okay only to find that the file gave up on the trasfer part way through, files loaded okay on to the flash drive, only to later become irrecoverable, etc. This product is GARBAGE. Maybe my copy is counterfeit, maybe its just cheap & nasty production, but if you go by reviews, there are just far too much garbage flash drives out there, wasting everyone's time. At least it only cost the price of a stamp to return it, though I grudge even that. You might be one of the luckier people for whom it works as it is supposed to do - and then again you might not. Perhaps it might be a safer bet to purchase you flash drive from the local supermarket.

Complete waste of money. Data seems to copy ok albeit extremely slowly (don't know if this was due to memory write speed or PC security software) but can't be read back. Windows shows some files there and loads missing. Even after reformatting, still no better. I would return for a refund but can't due to the nature of the data that may or may not now be stored on it. It's now going for secure disposal.

I made the silly mistake of transferring a lot of files to this memory stick and lost all but 7.64GB. The rest of the files had icons but when clicked these were said to be unreadable and corrupted. I deleted them and tried a second time with other files of which I kept copies but with the same result, so BEWARE. I shall never use anything with no brand name again; and recommend you stick to something reputable like Centon or Kingston both of which I've had no trouble with on various sticks.

It's a massive amount of space on a stick that looks nice and feels nice, and for the first few months all was hunky-dorey. Then I used it to store a presentation I was giving at an international conference and it managed to corrupt the ppt presentation. 2 weeks later, another conference, another presentation...and it did it again. On both occasions, I thankfully managed to find backup copies of the file that hadn't been near this memory stick and move them to a different stick, but this item has very nearly caused me to look extremely silly at 2 different conferences. I now no longer trust it for anything remotely important and will be replacing it with something better.

This simply doesn't work - it transfers some files at the speed of a tortoise and then gives up. Where files have transferred they disappear the next time you put the memory stick in. Useless!

Having to return this item 1 day after receiving it. Backing up files to it initially resulted in intermittent read errors, with prompts for retry or skip. Rebooted laptop in safe mode and tried to copy over files again to stick. Files would copy over, but to my horror - when I safely ejected and re-inserted USB Stick - folders were empty! I tried to reformat using exFat and NTFS (via Computer Management) - and still got the same read / write errors. Finally run a chkdsk E: /r command in an Administrative Command Prompt and got; "An unspecified error occurred (6e74667363686b2e 1540)" - have lost confidence in this product and have started the returns process

Bought this drive to record programmes from a JVC television. When I tried to access it with the TV I was told it needed to be formatted to FAT32. I connected it to my PC and selected format drive but there was no option to format to FAT32 only NTFS and exFAT. I tried formatting to NTFS and after waiting 2.5 hours for the format to be completed I plugged it into the TV again. Still not recognised by it so went back to exFAT ( another 2.5 hrs) still not recognised by TV. It's fine for storing files but no good for TV programme recording