HP Pavilion S3500F Desktop PC (2.80 GHz AMD Athlon X2 5400 Processor, 4 GB RAM, 500 GB Hard Drive, DVD Drive, Vista Premium) (Discontinued by Manufacturer) Desktop PC with 2.80 GHz AMD Athlon X2 5400 Dual Core Processor with 1MB L2 Cache 4096 MB PC2 6400 DDR2 SDRAM Memory (2 x 2048 MB), 500 GB 7200 RPM SATA Hard Drive NVIDIA GeForce 6150 SE Graphics with TurboCache with 128 MB Dedicated Graphics Memory SuperMulti DVD Burner with LightScribe Technology, Wireless LAN 802.11b/g Windows Vista Home Premium, dims in inches: 4.21 (W) x 8.5 (L/D) x 12.76 (H) approx., 21.41 lbs. approx.