Sony VAIO VGC-RB53 Desktop PC (Intel Pentium 4 Processor 630 (H-T), 512 MB RAM, 200 GB Hard Drive, DVD+R Dbl Layer/DVD+/-RW Drive) (Discontinued by Manufacturer) Monitor Not Included Intel Pentium 4 Processor 630 (3 GHz) with Hyper-Threading Technology 2MB L2 Cache FSB - 800MHz 512MB of PC-3200 400MHz DDR SDRAM (upgradeable to 2GB)