It’s not the brands it’s the sellers that are counterfeiting the drives. This is my experience. Never buy flash drives or memory cards from eBay NEVER.
The following is a guide to use 2 tools to test memory & text I c&p added & subtracted from so I’ll remember. Again the programs are not mine & the vast majority of the text is not my work.
On start choose English
H2testw 1.4 – Gold Standard In Detecting USB Counterfeit Drives
English How to
All about ‘Fake’ SD cards and USB Flash drives
My personal Text File:
2 Tools to Test and Detect Fake or Counterfeit USB Flash Drives.txt
ONLY 2 are GOOD Tools
4 Tools to Test and Detect Fake or Counterfeit USB Flash Drives
HAL9000 Updated 9 months ago Software 36 Comments
There are plenty of fake and counterfeit products around and the world of computers is not exempt. In recent years one area has become more prone to this than any other, and that is flash memory storage. Devices such as USB flash drives, SD/CF cards and even SSD drives have been affected by this problem. Counterfeit USB flash drives seem to be the most common though, there’s so many different types, capacities and speeds that it’s easy to hide them among all the real products.
You may think this problem only affects places like eBay but even Amazon and other legitimate retailers have been caught out too. This is why it’s a good idea to check any flash device you purchase is the product you paid for. Making sure the serial or code number on the stick is legitimate is one way, another is making sure the drive is the size advertised because most fake drives have a lower real capacity than listed by using smaller and much cheaper memory chips. The drive may even be reported as the right size in windows.
Software developers are also aware of this and some have written tools to help you identify if a drive is smaller than you expect and is therefore likely to be counterfeit. Here we have listed 4 for you to try that are designed to check for fake size drives.
For several years H2testw has been known as THE tool for checking memory based flash drives to see if they are the correct capacity. The problem is it was developed several years ago and the last release was way back in 2008, flash based media is available in much larger capacities now and a scan with H2testw can run into several hours because it hasn’t been optimized to run on big drives.
The method used in H2testw, while very slow is still one of the most thorough ways to scan the drive for a fake capacity. It isn’t a fully destructive test because it only checks the free space on the drive, but the best way is to use H2testw on a cleanly formatted device, that way it will be checked completely from the first byte to the last. It works by writing large 1GB files to the free space and then reading them back, the idea being if the read data isn’t the same as what was written, there’s a possible issue.
After it’s done the software leaves the test files on the media, you can erase them if you like or verify them again. If you have the time and want a very thorough test, try H2testw, if not try something that works a bit quicker first. H2testw defaults to German language but you can easily change it in the GUI.
The FakeFlashTest utility is from the developer of the RMPrepUSB multipurpose USB booting suite. One component of the RMPrepUSB program is a small and quick test to check your drive and its real capacity, this is an extended and enhanced version of that which has been released as a standalone executable. Unlike many other tools of this type, FakeFlashTest is quite new so includes optimizations and methods better suited for today’s flash media.
FakeFlashTest tries to fix the main issue with H2testw which is the incredibly slow time it can take for the process to complete on larger and slower flash drives. The first test you can run is similar to the one found in RMPrepUSB and a quick test. This writes and reads 512 bytes of data at set intervals across the drive and so finishes in less time. The second test is very similar to H2testw and writes/reads to all free space on the drive but has been optimized in a number of ways to complete the task much quicker than H2testw.
Do note that the the quick test is destructive meaning anything on the drive will be overwritten, so make sure your files are backed up. The slower test is not meant to be destructive but can still corrupt your files if they are on a bad area of the drive.