8TB capacity | New Generation Surveillance HDD designWD Purple drives are designed for high-definition, round-the-clock security systems. WD Purple drives are ideal for security systems, supporting workload rates1 of up to 180 TB/yr and up to 64 cameras. WD Purple surveillance storage also includes WD’s proprietary All Frame 4K technology, enabling you to reliably design a security solution specific to your company’s requirements. WD Purple drives enhance ATA streaming using All Frame 4K technology to assist lessen mistakes, pixilation, and video disruptions that could occur in a video recorder system. 1The amount of user data transported to or from the hard disk is referred to as the workload rate. Workload Rate (TB transferred â (8760/recorded power-on hours)) is annualized. Workload Rate may change.