Crystal DiskMark is designed to quickly test the performance of your hard drives. Currently, the program allows to measure sequential and random read/write speeds; and allows you to set the number of tests iterations to run. We left the number of tests at 5 and size at 100MB.Once again this drive is downright fast for a SATA drive and even better at lower queue depth performance than a MX200 250GB drive. That is no mean feat, and rather impressive.