90 Watt AC adapter is designed Compaq Presario R4000, R4100 and Hewlett Packard Pavilion ZV6000, VZ6100 models. Note: Depending on processor this laptop can take either a 90W, 150W or 180W adapter. Please refer to your original adapter before purchasing. This adapter will only work if your laptop takes a 90W or lower rating • 18.5V - 4.9A • Contacts: Multi-Pin Connector • 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 • Low input voltage shut down • Output over voltage limiting • Output current limited • Output ''short circuit'' shutdown • Internal over temperature shut down • Automatic reset for shut down conditions • 100% original manufacturer compatible • Guaranteed to meet or exceed original specifications • Full 1 year warranty