H2testW

H2testW is a software utility designed by c't Magazin für Computertechnik that can be used to test the authenticity and reliability of USB flash drives and SD cards. The software is simple to use and can be downloaded for free from the c't website.

When H2testW is launched, it will create a dummy file and write it to the device being tested. The software then reads the file back from the device to verify that there was no data loss, corruption or write errors during the process.

H2testW also has advanced features such as the ability to choose the size of the test file, which can be useful for testing larger capacity drives. It also has a reporting feature that shows detailed results of the tests conducted on the device.

• Test authenticity and reliability of USB flash drives and SD cards
• Free to use and download from c't website
• Create a dummy file and write it to device
• Read file back from device to verify no data loss or errors
• Advanced features include customizable test size and detailed reporting

H2testW is a useful tool for anyone who wants to know if their USB flash drive or SD card is reliable and authentic.