Lenovo ThinkPad W701ds 2500 compatible 2GB 1333MHz DDR3 SO-DIMM Black Diamond memory. Compatible computer model: Lenovo ThinkPad L412 0553, L412 0530, X220i, L512 2550, W710, X210t, Edge E430, T520i, T500 2081, Edge E520, Edge E425, Edge E120, X220 Tablet, L512 2598, L530, X220i Tablet, SL520, L412 0591, Edge E320, W510 4876, X130e, L512 2599, W701 2544, Edge E420, L412 4403, X230, L512 2597, T420, Edge E525, X210s, Edge E420s, L412 0585, W701 Series, W701ds 2500, Edge E125, T420si, L512 4444, W701ds Series, X210, Edge 11, L512 4447, Edge E530, T420i, X121e, Edge 13" 0217, W510 Series, SL420, Edge E325, L412 4404, L520. 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.