Have power when you need it, where you need it, anytime with the ThinkPad and Lenovo 90W AC Adapter. Keep one on your desk, another at home, and save your batteries for the road. - Same specifications as the standard 90W AC Adapter that ships with the select ThinkPad and Lenovo 3000 systems. - Compatible with Lenovo 3000 notebooks, ThinkPad T60, X60, and Z60 Series notebooks, ThinkPad Advanced Mini Dock, ThinkPad Essential Port Replicator, and ThinkPad External Battery Charger.