Detail overview Main Specifications : Product Description : HPE Midline - Hard Drive - 4 Tb - Sas 12gb/s Type : Hard Drive - Hot-swap Capacity : 4 Tb Form Factor : 3.5 Lff Interface : Sas 12gb/s Data Transfer Rate : 1.2 Gbps Spindle Speed : 7200 Rpm Features : Dual Port Dimensions (wxdxh) : 4.2 In X 6.7 In X 1.1 In Bundled With : Hp Smartdrive Carrier Extended Specifications : Device Type : Hard Drive - Hot-swap Capacity : 4 Tb Form Factor : 3.5 Lff Interface : Sas 12gb/s Bytes Per Sector : 512 Features : Dual Port Width : 4.2 In Depth : 6.7 In Height : 1.1 In Bundled With : Hp Smartdrive Carrier Drive Transfer Rate : 1.2 Gbps (external) Seek Time : 8.5 Ms (average) / 15.7 Ms (max) Track-to-track Seek Time : 0.8 Ms Spindle Speed : 7200 Rpm Interfaces : 2 X Sas 12 Gb/s Compatible Bays : 1 X Hot-swap - 3.5 Lff Environmental Parameters : Min Operating Temperature : 50 °f Max Operating Temperature : 95 °f Compatibility : HPE Proliant Dl20 Gen9 (3.5) HPE Proliant Dl20 Gen9 Entry (3.5) HPE Proliant Dl20 Gen9 Performance (3.5) Condition : Refurbished. Availability : In Stock. Our Warranty : 30 Days.