Apps similar to CapacityTester include H2testw, which is free. Other options are F3, ValiDrive, Quick Disk Test and MediaTester. In total there are nine Benchmark Tools like CapacityTester for Windows, Linux and Mac.
Data integrity test for USB sticks and other media
An advantage over other tools is, that it does not need administrative rights to access the device - but it should not be NTFS formatted, as it does not allow to test everything.
You can FAT32 format hard drive partitions large.
Germany
EU
F3 is an open source command-line tool that assesses the real capacity of USB sticks and other media. An advantage over other tools is, that it does not need administrative rights to access the device.
Brazil
Quickly spot-check any USB mass storage drive for fraudulent deliberately missing storage.
United States
Quick Disk Test fills a disk with test data and verifies that it can be read back without errors.
MediaTester can test any media (SD, microSD, USB thumbdrive, etc) and verify it stores the expected number of bytes. The testing method is similar to h2testw but MediaTester can detect fake or defective media much faster by performing quick reads as data is written.
Flash card/drive tester allows testing of any removable media including SD, MMC, CF, USB flash pen drives for bad or unstable sectors. Especially useful for testing for fake sizes often seen on low quality USB pen drives.
United States
Tests USB Flash drives and Flash memory SD cards to determine if they are fake (not full capacity). Much quicker than H2testw.
A counterfeit memory card is a small, genuine card whose controller chip has been programmed to report a much bigger size. Anything written past its real capacity either wraps back over earlier data or simply vanishes, which is why photos and videos silently corrupt weeks after...
Israel
