Built for relentless, around-the-clock surveillance, the WD Purple WD40PURX is engineered to excel in DVR and NVR systems. Boasting a 3.5‑inch SATA 6 Gb/s interface, 64MB cache, and 5400RPM-intelliPower™, this drive delivers a reliable balance of performance and efficiency. Western Digital’s exclusive AllFrame™ technology optimises ATA streaming to reduce dropped frames, minimize pixelation, and ensure smooth playback—critical for uninterrupted recording in multi-camera setup.
Designed to thrive in continuous-use environments, the WD40PURX supports up to 180TB of write workload per year, is compatible with up to 32HD camera systems across 8 bays, and operates reliably in high heat and vibration settings thanks to IntelliSeek™ tuning. With a 300,000 load/unload cycle rating, 1 million hours MTBF, and a 3-year warranty, this surveillance-class HDD delivers dependable storage that keeps security systems running flawlessly.