Western Digital WD43PURZ 4TB 5400rpm 256MB 3.5″ Serial ATA III Hard Drive – Purple

Digital Storage Capacity 4000 GB
Hard Disk Interface Serial ATA-600
Connectivity Technology SATA
Brand WD
Special Feature Portable
Hard Disk Form Factor 3.5 Inches
Hard Disk Description Mechanical Hard Disk
Compatible Devices Desktop
Installation Type Internal Hard Drive
Colour Purple

AllFrame™ 4K Technology: This firmware reduces frame loss and video pixilation. In surveillance, a “hiccup” in a desktop drive might result in a blue screen or a small error; in a Purple drive, it ensures the video stream continues smoothly.

All WD Purple drives are equipped with AllFrame technology, which improves ATA streaming to help reduce frame loss, improve overall video playback, and increase the number of hard drive bays supported within an NVR

CMR vs. SMR: The WD43PURZ uses CMR (Conventional Magnetic Recording). This is crucial for surveillance because it maintains consistent write speeds, whereas SMR drives can slow down significantly once they start filling up—a recipe for dropped frames.

Tarnish-Resistant Components: Because NVRs/DVRs are often tucked away in dusty closets or utility rooms, these drives are built with extra durability to resist environmental wear All WD Purple drives are equipped with AllFrame technology, which improves ATA streaming to help reduce frame loss, improve overall video playback, and increase the number of hard drive bays supported within an NVR WD Purple drives with AllFrame 4k technology feature a workload rating of up to 180TB/year – up to three times that of desktop drives – to handle the unique demands of modern video surveillance DVR and NVR systems.