Compaq Presario SR5550F Desktop PC (2.8 GHz AMD Athlon X2 5400 Dual Core Processor, 3 GB RAM, 500 GB Hard Drive, DVD Drive, Vista Premium) (Discontinued by Manufacturer) Desktop PC with 2.8GHz AMD Athlon X2 5400 Dual Core Processor with 1 MB L2 Cache 3072 MB PC2-6400 DDR2 SDRAM Memory (2x1024 MB 2x512 MB) (Expandable to 8 GB), 500 GB 7200RPM Hard Drive NVIDIA GeForce 6150 SE Graphics with TurboCache with 128 MB Dedicated Graphics Memory SuperMulti DVD Burner with LightScribe Technology Windows Vista Home Premium, dims in inches: 31 (W) x 6.67 (L/D) x 16.77 (H) approx., 9.64 lbs. approx.