Product details:

Surveillance is a highly important in our time. That's why this WD Purple will support those security systems. Built for 24/7, always-on, high-definition security systems. With a supported workload rate of up to 180 TB/yr and support for up to 64 cameras, WD Purple drives are built for for surveillance systems. From a worldwide leader in the storage industry, WD Purple is engineered for quality video playback when you need it most. WD Purple drives are optimized to support up to 64 cameras, giving you flexibility to upgrade or expand your security system.The WD60PURZ hard drive from Western Digital features 6TB of storage size in a 3.5 form factor. This drive connects to your system via the SATA 6 Gb/s interface so make sure you have an available port on your compatible motherboard. Advanced features of this HDD include a 64MB cache/buffer and 5400 rotational spin rate.With 6 TB capacity you have ample space for storing millions of images hundreds of hours of video or for music lovers up to a million songs
Experience rapid processing speed with 64 MB cache buffer
Have data stored faster with SATA/600 interface that optimizes burst performance