CrystalDiskMark is the go to software for testing the speed of any storage device. NVMe M.2 SSD, hard drives, external drives, SD cards, thumb drives...if it connects to your PC, you can test it.

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0:00 How to Download
1:11 How to Test SSD
2:10 Results Explained
4:30 Refined Explanation of Settings
8:34 Real World and Peak Profiles
10:20 Most Importantly
10:31 Conclusion and recommendation

Music Cruisin' Along by Chris Doerksen
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How To Use CrystalDiskMark | What Do The Numbers Mean?