ThinkServer RD550, 3Y NBD Onsite, 1U Rack Chassis, 2 x Intel Xeon E5-2620v3 (2.4GHz), 2 x 16GB DDR4-2133MHz (1Rx4) RDIMM, 4 x 3.5" HS SAS/SATA Drive Bays, Rear Drive: 2 x 2.5" HS SATA (Optional), No Drives Installed, RAID Installed: RAID 110i, RAID Levels Supported: 0,1,10, Internal Boot: Optional M.2 or SD Card, DVD RW, No OS Installed, 2 x 750W Platinum Power Supply, AnyFabric: I350-T4 (4x1GbE), ThinkServer System Manager, Premium Installed