Amazon.com: HGST Ultrastar 7K6000 HUS726060ALE610 (0F23001) 6TB 7200 RPM 128MB Cache SATA 6.0Gbps 3.5in Enterprise Hard Drive - 5 Year Warranty (Renewed),Mechanical Hard Disk : Electronics
Amazon.com: HGST Deskstar 3.5-Inch 2TB 7200RPM SATA III 6 Gbps 64 MB Cache Internal Hard Drive (0F12115) : Electronics
Amazon.com: Western Digital(WD) BLUE Deskptop 1TB( 1Terabyte) 3.5"Hard Disk Drive, 5400~7200RPM, SATA3 ( 6.0GB/s), 64MB Cache, IDEAL for PC/Mac/CCTV/NAS/DVR/Raid and SATA Applications, 1YR Warranty (Blue) : Electronics