Lenovo ThinkPad X60s 2533-xxx compatible Black Diamond memory 2GB 2X1GB DDR2 SO-DIMM 533MHz. Compatible desktop/laptop model: Lenovo ThinkPad T43 1875, T43 1876, Z60m 2532, T43 1872, Z60m 2529 Special Edition, T43 2679, Z60m 2531, T43 1871, T43p 2669, T43 2687, R52 1847, T43p 2668, R52 1860, R52 1859, R52 1846, Z60m, T43, R52 1862, R52 1858, Z60m 2529, R52 1849, R52 1848, Z60t 2512, T60p 1951-xxx, R51e 1844, Z60t 2513, R52 (1859BAU), Z60t 2511, T43 2678, T43 2669, R52 1861, T43 2668, T43 1874, T43p 2687, T43 2686, X60s 2533-xxx, R52 1850, R52 1863, Z60t 2511 Special Edition, Z60m 2530, R52 1870, R51e 1845, Z60t 2514, R51e 1843. 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.