Seagate Barracuda 3TB Surveillance Hard Drive - SATA 6Gb/s 64MB Cache 3.5-Inch Internal Drive (ST3000LM024)
WD 3TB (WD30PURX) WESTERN DIGITAL Purple 3.5" SATA Surveillance Hard – SPCP Computer accessories supplier
HDD 1TB 2TB 3TB 500GB SATA 6.0 Gb/s 3.5" Hard Drive Disk for Desktop Camera DVR | eBay
Amazon.com: Western Digital Purple 3TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD30PURX [Old Version] : Electronics
Western Digital WD3000FYYZ RE 3TB SATA 6Gb/s 7200 RPM 64MB Cache 3.5" | Advanced HPC
Amazon.com: Seagate SkyHawk 3TB Surveillance Internal Hard Drive HDD – 3.5 Inch Sata 6Gb/s 256MB Cache for DVR NVR Security Camera System with Drive Health Management (ST3000VX010) : Electronics
WD Red NAS Hard Drive WD30EFAX - Hard drive - 3 TB - internal - 3.5-inch - SATA 6Gb/s - 5400 rpm - buffer: 256 MB | Dell USA