Detail overview General Information : Manufacturer : Western Digital Corporation Manufacturer Website Address : Www.wdc.com Manufacturer Part : WD40EZRZ Product Line : Wd Blue Product Name : Wd Blue 4tb Internal Hard Drive Key Features : Capacity : 4 Tb Interface : Sata-6gbps Drive Dimensions : 3.5 Inch Advanced Format : Yes Rohs Compliant : Yes Performance : Data Transfer Rate (max) Buffer To Host : 6 Gbps Data Transfer Rate Host To/from Drive (sustained) : 150 Mbps Spindle Speed : 5400 Rpm Buffer : 64 Mb Physical : Dimensions (h X L X W) : 26.1 X 147 X 101.6 Mm Weight : 680 G Condition : Refurbished. Availability : In Stock. Server Supply Warranty : 30 Days.