Looking for a high-capacity hard drive for your surveillance needs? Look no further than the Western Digital Purple Pro 10TB drive. With a rotation speed of 7200 RPM and a cache of 256 MB, this internal desktop drive is built for 24/7 surveillance and is compatible with DVRs, PCs, and NVRs. Not only does this drive offer ample storage capacity, but it also features an in-built media server and is a security hard drive, ensuring your footage is safe and secure. This WD Purple Pro model comes with a 5-year manufacturer warranty and is designed for use with HDDs only. Get reliable and efficient storage for your surveillance needs with the Western Digital Purple Pro 10TB hard drive.