Seagate Skyhawk ST1000VX005 1TB 3.5" HDD Surveillance Drives; SATA 6GB/s Interface; 1-8 Bays Supported; MTBF: 1M Hr's; ; Camera's supported: Up to 64; Sustained TR: 180MB/s; 64MB Cache; Tarnish Resistant: Yes; Workload Rate: 180; RPM: 5900; 3 Year limited warranty