Seagate Barracuda ST2000DM001 2TB Internal Hard Drive  

HITACHI 2TB 3.5" HDD (HDS722020ALA330)  

Toshiba DT01ACA100 1TB Internal Sata Hard Drive

WD Blue WD10EZEX 1TB Desktop Internal Drive  

Western Digital WD10PURX 1TB Internal Hard Disk Drive