DELL has designed the 492-BBOF AC Adapter as a 45 watt adapter specific for Dell laptops. The power cable measures 6 feet, which adds some flexibility. This adapter works for a number of Dell laptop models, providing efficient power charging. The input voltage of 100-240V means it-s universally accepted. Like all adapters, the 492-BBOF is built with safety in case of over-voltage or short circuiting, preventing damage to your device. Consider this DELL AC Adapter if you-re looking for a dependable power supply for your laptop.