WESTERN DIGITAL Hard Drive - WD Purple Surveillance WD43PURZ - 4TB - SATA 6GB/S - 3.5in - 256MB

The Western Digital Purple WD43PURZ is a 4TB internal hard drive tailored for continuous video surveillance recording. It features a 3.5" form factor, SATA III interface, 5400 RPM spindle speed and a 256MB cache to deliver reliable, surveillance-class storage compatible with a wide range of NVR and DVR systems. The drive is engineered to tolerate constant operation, temperature fluctuations and equipment vibrations typical for security environments, and includes AllFrame™ technology to help reduce frame loss and improve video playback quality.

Advantages

WD Purple drives are optimized for 24/7 operation in surveillance systems, offering endurance under sustained write workloads and resistance to vibration and heat common in multi-drive enclosures. The 256MB buffer and AllFrame™ technology help minimize frame loss and improve playback consistency, while the SATA III interface and standard 3.5" size ensure broad compatibility with NVRs and desktop-style surveillance systems.

Suitable for

• Network video recorders (NVR) and digital video recorders (DVR) used in security systems
• Multi-drive surveillance arrays and RAID configurations
• Continuous, 24/7 recording of high-definition cameras

Key specifications

• Capacity: 4 TB (4000 GB)
• Form factor: 3.5"
• Interface: SATA III
• Spindle speed: 5400 RPM
• Cache: 256 MB

How to use

Install the WD43PURZ into a compatible 3.5" drive bay in your NVR, DVR or surveillance server and connect it via a SATA III port. Configure the drive within your recorder’s storage management or RAID settings if used in an array. Use the recorder’s formatting and initialization tools as recommended by the device manufacturer before starting continuous recording.

Recommendations

For reliable surveillance operation, place the drive in a properly ventilated enclosure, avoid excessive ambient temperatures, and ensure firmware and NVR software are up to date. When deploying multiple drives, follow the recorder manufacturer’s guidelines for RAID levels and drive placement to maintain data integrity and performance.