Per ASUS ROG Strix XG259QN Monitor Gaming Originale 19V 4.74A 5.5mm 90W ADP-90YD B
100%Original Genuine OEM 19V 4.74A, 90W AC Power Adapter. - OUTPUT: 19V 4.74A, 90W (ref to the picture). We believe good. - INPUT: 100-240V 1.5A 50-60Hz (for worldwide use). - Cord Cable:( US EU UK AU FOR YOUR CHOOSE).