Western Digital 4TB WD43PURZ Purple 256MB

Capacity: 4TB  Cache Size: 256MB  compatibility: Up to 64 HD cameras Up to 16 drive bays AllFrame firmware technology  Dimension: 5.79" x 4" x 1.03"  Product Weight: 1.26lbs  Interface: SATA  Transfer Rate: up to 175MB/s  Western Digital has provided surveillance-grade storage for more than a decade. With WD Purple surveillance storage, drives are engineered for high temperature, always-on surveillance systems so you can rely on quality video when you need it most. WD Purple delivers smart video storage that you can trust and are backed by a 3-year limited warranty1. Western Digital's Exclusive AllFrame™ Technology All WD Purple drives are equipped with AllFrame™ technology, which helps reduce video frame drops and improves video recording and playback. Enhanced Workload Ratings WD Purple drives feature a workload rating of up to 180TB/year2 - up to three times that of desktop drives - to handle the unique demands of mainstream video surveillance DVR and NVR systems. Multiple Cameras, Multiple Streams Modern recorders now support multiple video streams per camera. WD Purple drives support up to 64 single-stream HD cameras3. With so many options, you have the flexibility to upgrade or expand your security applications in the future. Designed for Surveillance Solutions With an MTBF of up to 1 million hours4, WD Purple drives are engineered for mainstream surveillance DVRs and NVRs that operate 24/7. With tarnish-resistant components5 and support in storage systems with more than eight drive bays6, WD Purple drives deliver reliable operation even in harsh environments. Wide Compatibility. Seamless Integration WD Purple hard drives are built with compatibility in mind, so you can quickly and seamlessly add capacity to your surveillance system. With a wide range of industry-leading enclosures and chipsets supported, you’re sure to find the DVR or NVR configuration that’s right for you.