WD Red is the only hard drive designed for NAS systems that have 1-5 drive bays. Available in capaticities ranging from 1 TB to 3 TB, WD Red is designed specifically for home and small office NAS systems. The drives are extensively tested for compatibility and reliability in the demanding operating environment of a 24x7 NAS system. WD's exclusive NASware firmware technology enables seamless integration and balanced performance. Innovative technology reduces power comsumption and lowers the operating temperature, and with a 35% improvement in MTBF over desktop drives, WD Red is a more reliable and robust NAS hard drive solution.

As hard drive capacities increase, the power required to run those drives increases as well. WD Green drives make it possible for energy-conscious customers to build systems with higher capacities and the right balance of system performance, ensured reliability, and energy conservation.