Purple Internal Hard Drive 3

The Western Digital WD Purple WD34PURZ is a 3 TB hard drive for continuous video surveillance recording. Its 3.5-inch form factor and SATA 6 Gb/s interface suit compatible desktop surveillance recorders and storage systems.

WD AllFrame technology helps reduce dropped video frames and improve recording and playback. The model supports up to 64 single-stream HD cameras and up to 16 drive bays, making it suitable for multi-camera surveillance setups.

WD34PURZ uses CMR recording technology and has a 128 MB cache, with a maximum host-to/from-drive transfer rate of 180 MB/s. Its listed annual workload rating is 180 TB/year.