The Western Digital Purple 4TB Surveillance Hard Disk Drive (WD40PURZ) is designed to meet the demanding needs of modern surveillance systems, offering substantial storage capacity and reliable performance. With its 4TB capacity, this hard drive provides ample space to store extensive video footage from up to 64 HD cameras, making it an ideal choice for high-resolution video monitoring applications.

Operating at a rotational speed of 5,400 RPM and equipped with a 256MB cache, the WD Purple delivers efficient data transfer speeds of up to 150MB/s, ensuring smooth and uninterrupted recording and retrieval of video data. Its advanced firmware is optimized for continuous operation and high-write environments, which are typical in surveillance systems that run 24/7.

The drive is built for reliability, with a workload rating of 180TB/year, reflecting its durability in handling large volumes of data. It boasts a mean time between failures (MTBF) of 1 million hours and an annualized failure rate (AFR) of 1.0%, providing dependable performance for critical surveillance applications.

The WD Purple is designed to operate quietly and efficiently, with a low power consumption of 6.8W during read/write operations and 5.0W when idle, and it features a standby/sleep mode that reduces power usage to 0.8W. Its noise levels are also minimized, with 23 dBA during idle and 27 dBA during seek, ensuring minimal disruption in operational environments.

The drive is engineered to handle vibration effectively, making it suitable for multi-drive setups and high-density environments. It operates within a wide temperature range, from 32°F to 140°F (0°C to 60°C), and can withstand non-operating temperatures from -40°F to 158°F (-40°C to 70°C).

With RoHS compliance and a 3-year limited warranty, the WD Purple 4TB Surveillance Hard Disk Drive offers both environmental responsibility and long-term reliability. It is an excellent choice for DVR and NVR systems that require robust, high-capacity storage solutions for continuous video surveillance.