Seagate Skyhawk, 1TB, Video Internal Hard Drive, 3.5", SATA, 6Gb/s, 64MB Cache, for DVR/NVR Security Camera System, with Drive Health Management, 3 year Rescue Services, FFP (ST1000VXZ05) : Amazon.co.uk: Computers & Accessories
HARD DRIVE Internal 3.5" 1TB 2TB 3TB 8TB SATA HDD CCTV DESKTOP HDD PC DVR IMAC | eBay
White Label 2 Terabyte (2TB) 16MB Cache 7200RPM SATA2 3.5" Internal Desktop Hard Drive (For PC, Mac, CCTV DVR, NAS) - w/ 1 Year Warranty : Amazon.co.uk: Computers & Accessories
HARD DRIVE 3.5" 1TB 2TB 3TB 4TB 6TB SATA HDD CCTV DESKTOP PC DVR CCTV | eBay