Lenovo OPTICAL DRIVES
42T2557
is compatible in the following Models:
Lenovo ThinkPad T Series laptops
ThinkPad T500 - 20893RM
ThinkPad T400 - 276712M
ThinkPad T400 - 2767RW1
ThinkPad T400 - 6474CTO
ThinkPad T400 - 6474RQ8
ThinkPad T400 - 6474RS2
ThinkPad T400 - 7417CTO
Lenovo ThinkPad X Series laptops
ThinkPad X200 - 7454CTO
ThinkPad X200 - 7458CTO
ThinkPad X200s - 7469CTO