Acer Veriton X2120G - AMD Sempron Dual-Core 2650 (2 x 512KB L2 cache 1.45GHz) Memory: 4GB (4/0) DDR3L SDRAM Storage: 500GB hard drive 7200RPM; Super-Multi drive; SD card reader Graphics: Integrated AMD Radeon R3 Communications: Gigabit LAN OS: Windows 8.1 Pro (64-bit) / Windows 7 Professional (SP1 64-bit)