WD Red 6TB NAS 3.5" Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, SMR, 256MB Cache

Target audience: Prosumer, SOHO and Workgroups or users who want to enjoy streaming media, backing up PCs, file sharing and managing digital content quickly and easily Before the users are starting to use the disk: do run a full surface test on it and if this test is passed then it will means the disk is OK Built for up to 8-bay NAS systems and up to 10TB capacities, for larger systems please use red pro drives NASware (TM) technology which optimises the hard drive for 24 x 7 NAS environments and improves reliability within NAS systems Most extensive NAS partner compatibility-testing list available on the market (as of March 2016)