Lenovo ThinkPad X41 2526 compatible 1GB 533MHz DDR2 SO-DIMM Black Diamond memory. Compatible computer model: Lenovo ThinkPad R52 1862, X41 2528, R52 1861, X41 1864, T43 1875, T43 2679, R52 1846, R52 (1859BAU), Z60m 2529 Special Edition, Z60t 2511, R51e 1843, R52 1859, X41 1865, X41 Tablet 1869, X60s 2533-xxx, T60p 1951-xxx, Z60t 2511 Special Edition, R52 1863, T43p 2669, Z60t 2514, T43p 2668, T43p 2687, X41 2527, T43 2668, Z60t 2513, R52 1848, X41 Tablet 1866, R52 1849, R51e 1844, R52 1858, T43 1874, Z60m 2531, X41 2525, R52 1870, T43 2678, Z60m, T43 1871, R52 1850, Z60m 2532, X41 Tablet 1867, X41 2526, Z60m 2529, T43 2687, T43 1872, R52 1860, R51e 1845, T43 2686, Z60t 2512, T43, T43 2669, R52 1847, Z60m 2530, T43 1876. 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.