Lenovo ThinkPad X100e 2876-xxx compatible 1GB 667MHz DDR2 SO-DIMM Black Diamond memory. Compatible computer model: Lenovo ThinkPad X100e 2876-xxx, R52 1844, R61 Series, X41 Tablet 1868, X41 1869, SL400 2743-xxx, SL500 2746-xxx, X60s 1705, T43 1873, R52 1843, T43p 2686, T60p 1951-xxx, SL300 2738-xxx, X60s 2533-xxx, Z61t 9448-xxx, T43p 2679, T60p 2009, R60i 0657-xxx, Z61m 0674-xxx, T43p 2678. Black Diamond Memory offers the most extensive line of memory solutions today. With our decades of experience specializing in memory, Black Diamond Memory is a proven manufacturer to the semiconductor industry. Our great products combined with our world class service and support have helped us to where we are today. When you have an Black Diamond memory chip, you can count on it being the best available memory for your system. Our system specific Branded Memory line delivers in performance, and is designed to be guaranteed in compatibility with your system. Each of our memory chips come with a lifetime warranty for your peace of mind. Use our Upgrade Configurator to easily find the correct memory module for your system. Please keep in mind that this memory will ONLY work on the models listed above. 15% Restocking fee will apply for non-defective items.