The 8TB Purple 7200 rpm SATA III 3.5" Internal Surveillance Hard Drive from WD is designed to withstand the stresses placed on it in a 24/7, always-on, high-definition surveillance system with an unlimited number of drive bays. With support for up to 64 high-definition surveillance cameras, this 8TB hard drive can hold a large amount of data and gives you the ability to easily upgrade and expand your security system. Furthermore, AllFrame AI technology helps improve video capturing and reduces errors, pixelation, and video interruptions that could happen in a video recorder system.

A SATA III 6 Gb/s interface, sustained data transfer speeds of up to 245 MB/s, and a 256MB cache all help to ensure uninterrupted data transfers. Furthermore, the drive's 600,000 load/unload cycles, annualized workload rating of 360TB per year, MTBF rating of 1.5 million hours, and 15 non-recoverable read errors per bit read also help to ensure a strong operational life.
Capacity: 8 TB
Cache Size: 256 MB
Disk Speed: 7200 rpm
compatibility: WD Purple surveillance storage is built to handle up to 64 cameras per drive and is designed for 24/7, always on, high-definition surveillance security systems with more than eight bays2.
Dimension: 5.79" x 4" x 1.03"
Product Weight: 1.58lbs
Interface: SATA