Brand New Replacement For 240W 19.5V 12.3A Dell Alienware M18x AC Adapter/Power Supply/Charger With Laptop Cord.Replacement For Dell Alienware M18x Adapter is rated at 19.5V 12.3A 240W.The high quality laptop charger for dell alienware m18x provides your laptop with safe and reliable power.It is over Charge protection, Voltage protection, Temperature protection, Short circuit protection, enjoys 1-Year Warranty,60-Day Money Back!The Adapter is a 240W rated power supply and replaces dell alienware m18x laptop charger. Designed to meet Dell's original specifications. The Replacement Dell AC Adapter is designed to be 100% manufacturer compatible and will meet OEM specifications.Always put first the DC output plug into the laptop's power jack before putting the input plug on the power outlet. This is the correct method.Keep your adapter in a dry place with room temperature. Just like other electronic devices, adapter can get damage cause by high temperature.Avoid the metal tip of the adapter from getting in contact with other metal objects because it can cause short-circuiting. Your laptop might get damage when a short-circuited charger is used.