If you need to test and benchmark your Hard Disk Drives, Solid State Drives, USB Drives, as well as check their read & write speeds, and monitor their the health status and temperatures, then these two free portable tools for Windows OS – CrystalDiskMark & CrystalDiskInfo – will be of great use to you.
Benchmark & Monitor Hard Disk & USB Drives
CrystalDiskMark & CrystalDiskInfo Tools
With the help of CrystalDiskMark utility, you can benchmark and test your hard disk & USB drives read & write speeds.
CrystalDiskInfo is an HDD/SSD utility software which supports S.M.A.R.T.
It supports a part of external USB disks and helps in monitoring the health status and temperatures. It throws up a lot of information about your drives.
Also, see HD Tune and PC Stress Test free software for Windows.