Drive WDC WD30EZRX-22D8PB0 3TB hdparm -t /dev/sda Timing buffered disk reads: 440 MB in 3.00 seconds = 146.53 MB/sec Drive Samsung SSD 870 EVO 1TB hdparm -t /dev/sdb Timing buffered disk reads: 1412 MB in 3.00 seconds = 470.39 MB/sec Drive Genesys Logic, Inc. GL827L SD/MMC/MS Flash Card Reader hdparm -t /dev/sdc Timing buffered disk reads: 50 MB in 3.07 seconds = 16.28 MB/sec