Amazon.com: Dell 401-ABHX 12TB 7.2K NL-SAS 12Gb/s 3.5” Hard Drive in 14G Hot-Plug HDD Tray Bundle with Compatily Screwdriver | Compatible with PowerEdge R240 R340 R440 R540 R640 R6415 R740 R740xd R7415
400-AZWK - Dell 400-AZWK 12TB SAS 12Gb/s Hot Swap 7200RPM 256MB Cache (512e) 3.5-inch Internal Hard Drive with Tray for PowerEdge and Powervault Server - serverevolution.com
881779-B21 HPE 12TB SAS 12G 7.2K LFF SC 512e DS Hard Drive
WD Ultrastar DC HC520 | HUH721212AL4200 (0F29560) | 12TB 7200 RPM 4Kn SAS 12Gb/s 256MB Cache 3.5-Inch Internal Enterprise HDD Data Center Hard Disk Drive - Newegg.com
Refurbished: 12TB SAS 12Gb/s 7.2K RPM 3.5" HDD for Dell – Water Panther