The WD Red Plus SATA internal hard drive is thoughtfully built to meet the demands of NAS environments. Its new NASware technology optimizes the drive's performance to effortlessly deal with NAS system workloads. The 6TB storage capacity provides enough space for storing a large volume of data, and 5, 400rpm allows for improved performance. | WD Red Plus 6TB 5400RPM SATA Internal NAS Hard Drive (WD60EFPX)