IBM ThinkPad T42 Laptop (1.70 GHz Pentium M (Centrino), 40 GB Hard Drive)  23734WU RAM is upgradeable to 2GB 2 RAM Slots (1 available) 400MHz FSB Integrated 802.11b Wi-Fi Wireless Networking Built-in ATI Mobility RADEON 7500 AGP 4x graphics with 32MB of DDR SDRAM