There’s a leading edge WD Red drive for every compatible NAS system to help fulfill your data storage needs. With drives up to 10TB, WD Red drives offer a wide array of solutions for customers looking to build a NAS storage solution. Built for single-bay to 8-bay NAS systems, WD Red drives pack the power to store your precious data in one powerhouse unit. With WD Red drives, you’re ready for what’s next. This drive features 1TB of storage. Connects via SATA 6Gb/s interface. Advanced features include a 64MB cache/buffer and 5400 RPM.