Compatibility Information | Designed For | IBM ThinkPad R52 1846, 1847, 1848, 1849, 1858, 1859, 1860, 1861 ¦ IBM ThinkPad T43 1871, 1872, 1875, 1876, 2668, 2669, 2686, 2687 ¦ Lenovo ThinkPad R50e 1846, 1847, 1848, 1849, 1859, 1860 ¦ Lenovo ThinkPad R51e 1846, 1847, 1848, 1849, 1859, 1860 ¦ Lenovo ThinkPad R52 1846, 1847, 1848, 1849, 1858, 1859, 1860, 1861 ¦ Lenovo ThinkPad T43 1871, 1872, 1873, 1874, 1875, 1876, 2668, 2669, 2686, 2687 |