Seagate Skyhawk Surveillance 1TB 3.5″ SATA Internal HDD

Seagate Ironwolf 8TB 3.5″ Internal NAS Drives; SATA 6GB/s Interface; 1-8 Bays Supported; MUT: 180TB/Year; RV: Yes; Dual Plane Balance: Yes; Error Recovery Control: Yes; 256MB cache; RPM 7200, , 3 year warranty

Seagate Barracuda 6TB SATA 6Gbps With 256MB Cache Internal Hard Drive, , 2 year warranty