Western Digital Purple 6TB 3.5" SATA III Internal Surveillance Hard Drive

The Western Digital WD64PURZ is a 3.5-inch internal hard drive created specifically for surveillance recorders that run around the clock. With 6 TB of space and a SATA III interface, it gives a security system plenty of room and bandwidth to store continuous video without missing a frame.

Western Digital builds the Purple line with AllFrame firmware, a feature that fine-tunes how the drive handles incoming video streams. This adjustment reduces frame loss, limits pixelation, and keeps recorded footage smooth during playback. A 256 MB cache and sustained transfer rates up to 175 MB/s work together to move data quickly from camera to disk, even when several feeds are writing at the same time.

The drive carries a workload rating of 180 TB per year and can support up to 64 high-definition cameras on a single unit. Tarnish-resistant components add another layer of protection for installations where heat, humidity, or dust might shorten the life of standard desktop drives.

Whether you manage a small business with a handful of IP cameras, oversee a large multi-camera NVR in retail, or want reliable storage for a home security setup, this model integrates easily and stays dependable during continuous operation. Its 3-year limited warranty from Western Digital provides added confidence for long-term deployments.

• 6 TB capacity made for continuous video recording
• SATA III 6 Gb/s interface with up to 175 MB/s sustained transfer speed
• Compatible with up to 64 high-definition cameras on one drive
• AllFrame firmware limits frame loss and improves playback quality
• 256 MB cache helps maintain smooth data flow under heavy workloads
• Workload rating of 180 TB per year and 24/7 operational design
• Tarnish-resistant components for better durability in harsh conditions
• Backed by a 3-year limited warranty from Western Digital