WD Gold 8TB Datacenter Hard Disk Drive - 7200 RPM Class SATA 6 Gb/s 128MB Cache 3.5 Inch - WD8002FRYZ Specifically designed for use in enterprise servers, datacenter servers, and storage systems Designed for 24x7x365 reliability at workloads up to 550TB per year High level of reliability with up to 2.5 million hours MTBF Performance-optimized for heavy application workloads 5-year limited Warranty Package includes a hard drive only - no screws, cables, manuals included. Please purchase mounting hardware and cables separately if necessary. Ships in WD-certified box for safe transit during shipping