Full Details from Amazon.com : http://www.amazon.com/gp/product/B00BLFOFPY?tag=onigi-20
2GB RAM Memory for Lenovo ThinkPad X100e 3508 Black Diamond Memory Module DDR2 SO-DIMM 200pin
Brand new certified 200pin PC2-5300 667MHz DDR2 SO-DIMM Black Diamond Memory
Low density 2GB memory single stick memory module
100 compatible garrantee for Lenovo ThinkPad X100e 3508
100 pre-tested on Lenovo system to ensure functionality
Lifetime warranty
