This product is either discontinued or we cannot get that from suppliers.
Western Digital WD62PURZ Hard Drive, Buffer 128 MB, Wireless LAN No, Product Family Purple, Drive Interface SATA, Drive Interface Standard SATA/600, Spindle Speed (rpm) 5640, Drive Type Internal, Form Factor 3.5", Storage Capacity 6 TB, Environmentally Friendly Yes, Environmental Certification RoHS.
WD Purple drives are engineered specifically for surveillance to help withstand the elevated heat fluctuations and equipment vibrations within NVR environments.