DESC: The ThinkPad X Series is ideal for on-the-go users who need an ultrathin, ultralight notebook but refuse to sacrifice quality, durability, or performance. The X61s provides next generation performance, wider connectivity and better battery life. Power up with the latest high-performance processors. Dual-core processing and faster Intel architecture deliver a wide variety of benefits, including true parallel processing when running multi-threaded applications or multiple applications simultaneously.This model features Intel Centrino Pro technology.