Lenovo ThinkPad T520 4240 - Core i5 2520M / 2.5 GHz - RAM 4 GB - HDD 320 GB - DVD-Writer - HD Graphics 3000 - 3G Upgradable - Gigabit Ethernet - WLAN : 802.11b/g/n, Bluetooth 3.0 - TPM - Windows 7 Pro - 15.6" Widescreen LED backlight TFT 1366 x 768 ( WXGA ) - TopSeller

The ThinkPad T520 maximizes performance and offers a higher level of productivity for today's mobile business professionals. These laptops are built upon a platform of Lenovo innovations that respond to key business needs including: video and voice calling, smart PC features for power and performance management, all-day battery life, enterprise management and an intuitive, easy-to-use computing experience.