Rosefray AC Adapter 12v 5a 5.5mm 2.5mm for Dell S2440L S2440Lb LED LCD Monitor DC Charger Power Supply US Cord Power Specs : Input Volt Range: AC 100-240V 50-60Hz (Worldwide AC Input) / Output: 12v 5a Connecter size:5.5mm *2.5mm Compatibility : Please see full list of compatible models in the Product Description. Check Connector Photo to Ensure Compatibility Package Include: 1 x Power Adapter & 1 x US Power Cord ( Outlet: 3-prong ) About RosefrayChargers manufactured with the highest quality materials and include multiple smart features safeguarding against IV - incorrect voltage, SC - short circuit, IO - internal overheating. CE/FCC/RoHS certified. Warranty: 30 Days Money Back Guarantee / 24 Months - Free Exchange ,Please contact us with any questions or concerns .