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