MVP of NAS There's a WD Red drive for every compatible NAS system to help fulfill your data storage needs. Built for single-bay to 8-bay NAS systems, WD Red packs the power to store your precious data in one powerhouse unit. With WD Red, you're ready for what's next. The drive for NAS Desktop drives aren't typically tested or designed for the rigors of a NAS system. Do right by your NAS and choose the drive with an array of features to help preserve your data and maintain optimum performance. Built for NAS Compatibility WD Red drives with NASware 3.0 technology are purpose-built to balance performance and reliability in NAS and RAID environments. Keep it Cool The always-on environment of a NAS or RAID is a hot one.