IBM/Lenovo ThinkServer Memory Upgrade Configurator - choose your Model:

RD120 6444, 6445, 6446, 6447-xxx
RD210 3795, 3796, 3818, ,3819-xxx
RD220 3729, 3779, 3797, 3798-xxx
RD230
RD240
RS110 6435, 6436, 6437, 6438-xxx
RS210
TD100 6398, 6399, 6419, 6429-xxx
TD100x 4203, 4204, 4205, 4206-xxx
TD200 3724, 3808, 3809-xxx
TD200 3815, 3817-xxx
TD200 3824, 3826, 3836-xxx
TD200x 3719, 3821, 3822, 3823-xxx
TD230
TS100 6431, 6432, 6433, 6434-xxx
TS200
TS200v