Lenovo Thinkpad SL500 Laptop - Intel Core 2 Duo Processor T5870 (2.00 GHz) 800MHz system bus, 2-MB L2 cache - PC2-5300 Non-Parity (NP) Double Data Rate Two (DDR2) Technology Dual-channel capable Two 200-pin SO-DIMM sockets 2GB memory - Intel Graphics Media Accelerator X4500HD 15.4” Screen - High Definition (HD) Audio Conexant CX20561-15Z codec - DVD CD/RW - Ethernet Port 10/100/1000 Ethernet – Wireless ThinkPad 11b/g Wireless LAN Mini PCI Express Adapter III - External ports Four USB ports version 2.0 - External monitor (VGA DB-15, HDMI) - Built-in RJ-11 connectors for telephony connections - Built-in RJ-45 connectors for LAN connection - IEEE 1394 FireWire 400 (4-pin connector; 1394a-2000 standard) - Audio ports External stereo speakers or headphone Dual array microphone -