Sony VAIO PCG-K45 15.4" Laptop (Mobile Intel Pentium 4 Processor 538, 512 MB RAM, 80 GB Hard Drive, DVD/CD-RW Drive) 1MB L2 Cache 533MHz FSB 512MB of PC2100 DDR SDRAM (expandable to 1GB) 2 RAM Slots (occupied) Built-in 802.11g Wi-Fi Wireless Networking Adapter