CrystalDiskMark is a disk benchmark utility provides throughput data based on sequential reads and writes, and random (512K/4K/4KQD32) reads and writes of various sizes.

The sequential tests show that the Crucial SSD is able to max out the SATA interface when reading and get very close when writing. This is translated to fast moving of large files in a real-world usage.

Typical inexpensive SSD series can’t pass 30MB/s random 4K read while most higher SATA SSD can’t make much more than 32-33MB/s. The BX300 offers over 34MB/s what is pretty good result.

For a drive aimed at the value end of the market , the BX300 performs very well dealing with small 4K files at a pretty deep queue depth.