Replacement For Asus PA-1900-24 Adapter is rated at 19V 4.74A 90W.The high quality laptop charger for asus pa-1900-24 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!Brand New Replacement For 90W 19V 4.74A Asus PA-1900-24 AC Adapter/Power Supply/Charger With Laptop Cord.The Adapter is a 90W rated power supply and replaces asus pa-1900-24 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.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.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.