WD Red & Red Pro NAS HDD - Designed and Optimized for NAS Compatibility - WD Red Provides Storage Compatible with Leading NAS Systems WD Red drives are built for up to 8-bay NAS systems, and pack the power to store your precious data in one powerhouse unit. Increase the efficiency and productivity of your business with WD Red Pro drives, available for up to 24-bay NAS systems. - PC 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.CompatibleTested with a wide range of NAS systems for optimum performance and compatibilityReliableDesigned to operate in the always-on environment of a NAS or RAID configuration - High Capacity - Capacities up to 20TB allow the flexibility to build the optimal NAS solutionHighlightsBuilt for NAS compatibility - NASware??? 3.0 technology - Engineered to run cool and quiet - Designed for RAID environments - Noise and Vibration Protection - Applications and Workload - Up to 8-bay NAS Systems (WD Red)Medium to Large NAS environments up to 24 bay (WD Red Pro)RAID Configurations - Virtualization