6TB Purple Surveillance HDD 3.5" SATA 6.0Gbps
6TB - CMR Recording Technology - 3.5" Surveillance/NVR - SATA 6.0Gbps - 175MB/s Max. Sustained Speed - 256MB Cache - 180TB/y WRL - Supports up to 64 HD Cameras for Network Video Recorders - 3 Year Depot Carry-In Mfg. Warranty
18TB Gold Enterprise 7200rpm 3.5" SATA 6.0Gbps (512e)
18TB - 7200RPM - EAMR Recording Technology - 3.5" Enterprise - SATA 6.0Gbps - 269MB/s Max. Sustained Speed - 512MB Cache - 512e Sector Format - 5 Year Depot Carry-In Mfg. Warranty