For every compatible NAS system, there is an industry-leading WD RedTM hard drive to store your valuable data. With capacities up to 6TB, WD RedTM hard drives offer a wide range of storage for customers looking to build a NAS solution. These drives are designed and tested for home and home office NAS systems with up to 8 drive bays.... In just one of these powerhouses, you get concentrated performance for storing, archiving and sharing data. With WD RedTM you are well positioned for the future.