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) - Walmart.com
Amazon.com: 2000GB (2TB) HDD 7200 RPM High Performance Storage 3.5" SATA 3.0 Gb/s Internal Desktop Hard Drive for PC,Mac,CCTV,DVR,NAS,RAID- SEAGATE : Electronics
Toshiba Canvio Ready Portable External Hard Drive 2TB Black - Walmart.com