Amazon.com: Western Digital 2TB WD Red NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, SMR, 256MB Cache, 3.5" - WD20EFAX : Electronics
Amazon.com: WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD20PURX [Old Version] : Electronics
Amazon.com: Seagate 2TB 7.2K 3.5" 6Gb/s SAS Hot Swap Hard Drive with Tray Compatible with Dell PowerEdge R710, R720, and R730 Servers (Renewed) : Electronics