HP EliteDesk 2016 Flagship Model Desktop Computer Premium High Performance | AMD A10 Quad-Core 3.5Ghz | Radeon R7 Graphics | 16GB RAM | 2TB HD | DVD&plusmn;RW | Windows 7/10 Professional | 3-Year Warranty AMD A10 PRO-7800B 3.5 GHz, 64 bit Quad-Core Processor, 4 MB L2 Cache, 16 GB DDR3 1600, 2 TB SATA 7200 RPM, Slim SuperMulti ODD Integrated AMD Radeon R7 series, shared system memory, Ethernet , Integrated DTS Studio Sound , High Definition Audio Front Ports: 2x USB 2.0, 2x USB 3.0, Headphone/microphone combo, Rear Ports: 4x USB 2.0, 2x USB 3.0, Headphone/microphone combo, 1x VGA, 2x DisplayPort Windows 7 Professional(upgradable to Windows 10 Pro), PS/2 mouse & keyboard, black color. Revolutionary APU combines the power of a multicore CPU with AMD Radeon graphics all in one energy-efficient chip