FakeFlashTest is an online application designed to detect counterfeit USB flash drives and memory cards. It provides a comprehensive and easy-to-use set of tools to help users test the integrity and performance of their USB storage devices. The application contains a range of tests to help identify and diagnose any potential problems with the device, such as data corruption and compatibility issues. The app also provides detailed reports and analysis on the results of the tests to help users quickly and accurately assess the health of their USB storage devices. FakeFlashTest is a free application and is available for both Windows and Mac OS systems.
H2testw
Check Flash
Flash Memory Toolkit
Discontinued The program seems to be no longer updated. The latest version, 2.01, released in June 2011, can still be purchased from the official website.