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
ST500LM025 Seagate Laptop Thin 500GB 5400RPM SATA 6Gbps 32MB Cache (SED) 2.5-inch Internal Hard Drive