Toshiba Satellite M45X-S331 15.4" Laptop (Intel Pentium M Processor 730 (Centrino), 512 MB RAM, 80 GB Hard Drive, DVD SuperMulti Drive) Intel Pentium M Processor 730 (1.6 GHz) 2MB L2 Cache 533MHz FSB Built-in 802.11b/g Wi-Fi Wireless Networking Adapter 512MB of PC2700 DDR SDRAM (expandable to 2GB)