Acer Veriton X488G-UQ8400W Compact Desktop PC (Black) (Discontinued by Manufacturer) Windows 7 Professional (64-bit) Intel Core 2 Quad Processor Q8400 (4MB L2 cache, 2.66GHz, 1333MHz FSB) 4GB (2/2/0/0) DDR3 SDRAM 640GB SATA hard drive, 7200RPM; Super-Multi drive Integrated Intel Graphics Media Accelerator X4500