Built and tested to provide industry-leading performance for 24x7 NAS applications Includes NASWorks technology to support customized error recovery, advanced power management and vibration tolerance features Designed for home servers or desktop NAS solutions, small-business file sharing, backup server applications Available in 2TB, 3TB and 4TB capacities Always on, 24x7 - 1M hours MTBF model : Seagate 4TB NAS HDD SATA 6Gb/s NCQ 64MB Cache 3.5-Inch Internal Bare Drive - ST4000VN000 tag : Internal Hard Drives