Around 20k - 30k hours operative time, 99.99% of which are file reads.

All disks sold are always tested "Good" in CrystalDiskInfo (zero bad sectors).

See them in action here: https://photos.google.com/share/AF1QipOoJz_MONj6pBSwTUORFVavngE9md9CKBgzJeaDvud3LDZB1P1SR32h0OFL_-pTNw?key=X0E4c0gzNUNRTWZ0TnhOeEtkNnhUd2RZZ0V3bDlR