Seagate HARD DRIVE Internal 3.5" 1TB 2TB SATA HDD CCTV DESKTOP HDD PC DVR IMAC | eBay
How to do when DVR can not detect hard disk?
Seagate Skyhawk 1TB Surveillance Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 64MB Cache for DVR NVR Security Camera System with Drive Health Management (ST1000VX005) - Walmart.com