Replacement For Asus EXA1004UH Adapter is rated at 19V 2.1A 40W.The high quality laptop charger for asus exa1004uh 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 40W rated power supply and replaces asus exa1004uh laptop charger. Designed to meet Asus's original specifications. The Replacement Asus 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.Switch off the Laptop AC power adapters when you are not using the laptop to prevent overheating.Don't shake or knock the adapter. Improper handling may break the internal parts and circuit boards.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.