Western Digital WD Purple 2TB 3.5" Surveillance Hard Drive, 64MB - WD23PURZ

• 2TB capacity in a 3.5-inch form factor with a high-speed SATA 6 Gb/s interface
• Engineered specifically for continuous 24/7 mainstream surveillance DVR and NVR systems
• WD AllFrame technology optimizes video streaming to reduce frame drops and pixilation
• Supports up to 64 single-stream HD cameras and surveillance setups with up to 8 drive bays
• Workload rating of up to 180 TB/year with sustained transfer rates up to 175 MB/s
• Features 64MB cache, CMR recording technology, and IntelliSeek vibration management

This 3.5-inch internal hard drive is purpose-built for continuous, always-on video surveillance setups. Designed for mainstream digital video recorders (DVRs) and network video recorders (NVRs), it provides dependable 2TB storage tailored to meet the demands of round-the-clock security recording in environments supporting up to eight drive bays.

Equipped with WD AllFrame technology, the drive optimizes write-intensive, low bit-rate workloads typical of security camera systems to help minimize frame drops and improve video playback. It supports up to 64 single-stream high-definition surveillance cameras, delivering sustained transfer speeds of up to 175 MB/s.

Built using conventional magnetic recording (CMR), it features a 64MB cache and an annualized workload rating of up to 180 TB per year. Integrated IntelliSeek technology calculates optimum seek speeds to reduce noise, power consumption, and vibration during operation.