Internal HDD Western Digital Purple 4 TB 5400 RPM 128 MB 3.5 inch Serial ATA III

WD Purple internal hard drive with 4 TB capacity, 5400 RPM spindle speed and 128 MB cache is engineered for continuous video surveillance recording. The 3.5" Serial ATA III drive is designed to operate 24/7 in DVR and NVR systems, offering compatibility with standard SATA controllers and support for multi-stream camera setups. Its construction helps withstand elevated temperatures and vibrations common in security environments.

Advantages

The drive is optimized for surveillance with AllFrame™ technology to reduce video frame loss and improve playback. It features an enhanced workload rating for continuous recording, compatibility with enclosures and chipsets commonly used in surveillance systems, and a long MTBF targeted at always-on operation. A 3-year limited warranty is provided.

Suitable for

• Network Video Recorders (NVR) and Digital Video Recorders (DVR) operating 24/7
• Multi-camera surveillance installations (up to 64 single-stream HD cameras supported)
• Surveillance storage expansion in enclosures with multiple drive bays

Key specifications

• Capacity: 4 TB
• Form factor: 3.5 inch
• Interface: Serial ATA III (SATA III)
• Spindle speed: 5400 RPM
• Cache buffer: 128 MB
• Workload rating: up to 180 TB/year
• Mean time between failures (MTBF): up to 1,000,000 hours
• Weight: approximately 0.55 kg

How to use

Install the 3.5" SATA drive into a compatible DVR, NVR or enclosure following the system manufacturer’s installation instructions. Connect the drive using a SATA data cable and appropriate power connector, secure it in the drive bay, and configure the surveillance recorder software to initialize and format the drive if required. Verify firmware and system compatibility when adding capacity to existing surveillance systems.

Recommendations

Use the drive in systems designed for continuous operation and ensure adequate cooling and vibration control within the enclosure. For optimal performance in multi-camera setups, follow the recorder manufacturer’s guidelines for drive capacity and stream allocation. Maintain regular backups and monitor drive health using compatible diagnostic tools.