UL Listed Charger Fit for Asus M1603 M1603Q UX533FN UX533FD UX533F UX533 Zenbook Duo UX481FL UX481FL Pro 14 UX450F UX450FD UX450FDA UX450 P4540UQ P4540U P4540 VivoPC K20CD K20C K20 K560 Laptop