The Amstron NAC-11 withstands the harshest mobile environments with its rugged and durable case. This 60 watt 16V AC adapter is made to work with the IBM Thinkpad series. • Rugged case withstands harshest mobile environments • Sealed for protection against moisture and high humidity • Designed to filter input line voltage spikes or surges • Exclusive internal safety features protect your notebook from electrical hazards • 100% original manufacturer compatible • Guaranteed to meet or exceed original specifications • Warranty: 1 Year