usbroway 90W AC Adapter 19V 4.74A 5.5×2.5mm laptop charger

90W 19V AC adapter for ASUS laptops

This 90 watt AC adapter supplies 19 volts at 4.74 amps through a 5.5 by 2.5 mm barrel connector. It replaces the original charger for a wide range of ASUS models including K52, K53, K55, X401, X450, X501, X502 and X550 series. The unit accepts 100 to 240 volt input at 50 to 60 Hz and uses a three-prong AC inlet.

Simple plug-in replacement, check connector first

Installation is a direct plug into the laptop power jack and a standard wall outlet. The critical step is confirming the 5.5 by 2.5 mm connector dimensions and the 19 volt 4.74 amp output match the original adapter before purchase. Mismatched polarity or tip size are the most common reasons a replacement will not work.

Steady 90 watt output under continuous load

The adapter is rated to deliver the full 90 watts continuously while the laptop runs and charges the battery simultaneously. It maintains the specified 19 volt output during sustained use without dropping voltage or triggering thermal shutdown. The three-prong grounded inlet and CE, FCC, UL or RoHS certifications indicate compliance with safety standards for prolonged operation.