Internal Hard Drive Western Digital Purple Surveillance WD42PURZ 3.5" 4TB

Western Digital Purple WD42PURZ 4TB Internal Hard Drive

The WD42PURZ is a 4TB internal hard drive from the Western Digital WD Purple Surveillance series, designed for video recording in security systems. It comes in the 3.5-inch format with a SATA 6Gb/s interface, a 5400 RPM class spindle speed and a 256MB cache. The 4TB figure is the manufacturer's nominal capacity in decimal units; operating systems usually display a smaller value because they count in binary units.

The series is rated for a workload of up to 180 TB per year and includes AllFrame technology, which helps reduce dropped frames and interruptions in recordings. The drive uses CMR recording technology.

The drive suits continuous 24/7 recording in NVR and DVR systems, at home, in businesses and in surveillance setups, and is not intended as an ordinary workstation drive. The drive connects with a SATA data cable and a standard SATA power connector, and it can be installed in any computer or enclosure with a 3.5-inch bay. The SATA 6Gb/s interface is backward compatible with older SATA connections. Before installing it in a NAS or server, check the system manufacturer's compatibility list and back up any existing data.

Key features

• 4TB capacity - 4TB of space for video recordings from security cameras.
• Built for surveillance - The Purple Surveillance series is designed for continuous recording in NVR systems.
• AllFrame technology - Works with ATA streaming to reduce dropped frames and video interruptions.
• 5400 RPM and 256MB cache - A 5400 RPM class spindle speed and a 256MB cache.
• Workload rating - The series is rated for a workload of up to 180 TB per year.
• SATA 6Gb/s interface - A SATA 6Gb/s connection in the 3.5-inch (LFF) format.

Specifications