Pack of 20 Western Digital® Purple HDD of 3 TB.

Technical specs - Capacity: 3TB - Interface: SATA at 6GB/sec. - Cache: 64MB - 5400 rpm - Supported unit bays: 8 - Supported cameras: up to 64 - Maximum transference speed: 145Mbps - Average working consumption: 4,4W - Idle consumption: 4,1W - Standby consumption: 0,4W - Working temperature: +5°C~+60°C - Load/unload cycles: 300.000 - Annual workload: 180TB /year - Working temperature: -40°C ~ +70°C - Dimensions: 101,6 (width) x 26,1 (height) x 147 (depth) mm - Weight: 640 g