IBM ThinkPad CD-RW/DVD-ROM Combo II UltraBay Slim Drive T40 T41 T42 T43 39T2505 Read: CD 24x, DVD 8x; CD Write: 24x Model Number: GCC4242N; FRU: 13N6769, 13N6771, 39T2529, 39T2505, 13N6770 IBM Lenovo ThinkPad R, T, X series Combo Drive (review description for specific compatibility) Comes with 30 Day Warranty