Toshiba Satellite M45X-S351 15.4" Laptop (Intel Pentium M Processor 740, 512 MB RAM, 100 GB Hard Drive, DVD SuperMulti Drive) Intel Pentium M Processor 740 (1.73 GHz) 2MB L2 Cache 533MHz FSB Built-in 802.11b/g Wi-Fi Wireless Networking Adapter 512MB of PC2700 DDR SDRAM (expandable to 2GB)