Sony VGN-P series:
Sony Vaio VGN-P11Z VGN-P11ZR VGN-P19VN VGN-P19VRN VGN-P19WN VGN-P21S VGN-P21Z VGN-P21ZR VGN-P29VN VGN-P29VRN VGN-P31ZK VGN-P31ZRK VGN-P39VL VGN-P39VRL