Western Digital Purple internal hard drive 2 TB 3.5" Serial ATA

Type: HDD Workload rate limit: 180 TB/year 24/7 operation: Yes Mean time between failures (MTBF): 1000000 h Noise level (idle): 21 dB HDD capacity: 2 TB HDD size: 3.5" Interface: Serial ATA Component for: Surveillance system Power consumption (write): 3.8 W Power consumption (read): 3.8 W Power consumption (idle): 3.2 W Depth: 147 mm Height: 26.1 mm Width: 101.6 mm Weight: 450 g Quantity per pack: 1 pc(s) Maximum number of cameras supported: 64 Harmonized System (HS) code: 84717050 Warnings: Do not expose to high temperatures or moisture.