Gateway SX2855-UR13 Desktop (2.90 GHz Intel Pentium G645 Processor, 4 GB RAM, 500 GB Hard Drive, Super Multi DVD Drive, Windows 7 Home Premium 64-bit) Black Intel Pentium G645 2.9GHz, 64 bit Dual Core Processor 4GB DDR3 RAM, 500GB SATA Hard Drive, 16X DVD+/-R/RW SuperMulti Drive, 1 VGA, 1 HDMI 10/100/1000Mbps, 3 x USB 2.0, MultiMediaCard (MMC), Secure Digital (SD) Card, Memory Stick, Memory Stick PRO, xD-Picture Card Windows 7 Home Premium, 64 bits Gateway optical mouse and USB keyboard included