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.In RAID or out of it the new MX200 is noticeably better than its predecessors and it is simply outclassing SSHD and HDDs – some of which cost even more than it does.