https://www.accbatt.com/power-adapter-for-asus-c-282_283/replacement-ac-adapter-charger-for-asus-vivobook-q301-q400-q500a-q501-q502la-q503ua-s300-s400ca-s500ca-s550-s551-p-3620.html
Replacement AC Adapter Charger for ASUS VivoBook Q301 Q400 Q500A Q501 Q502LA Q503UA S300 S400CA...
Replacement AC Adapter Charger for ASUS VivoBook Q301 Q400 Q500A Q501 Q502LA Q503UA S300 S400CA S500CA S550 S551, Over Current Protection, Over Head Protection.