CrystalDiskMark is designed to quickly test the performance of your hard drives. Currently, the program allows you to measure sequential and random read / write speeds.

CrystalDiskMark Features:

Measure sequential read / write speed
Randomly measure 512 KB, 4KB, 4KB (Queue Depth = 32) read / write speed
Select test data (Random, 0Fill, 1Fill)
Theme Support
Multi-language support