Western Digital WD Purple 4TB 3.5" SATA Surveillance Internal Hard Drive

The Western Digital WD Purple 4TB WD43PURZ is a surveillance-optimized 3.5-inch internal hard drive designed specifically for DVR and NVR security systems. With 4TB of storage capacity, it provides reliable storage for continuous surveillance video recording. The drive is engineered for 24×7 operation and supports up to 64 HD cameras, making it suitable for homes, offices, retail stores, warehouses and commercial surveillance installations. The WD43PURZ uses CMR recording technology, features a 256MB cache and provides transfer rates of up to 175MB/s. It supports surveillance systems with up to 16 drive bays and is rated for workloads of up to 180TB per year.