About this item INPUT: 100-240V-2A, 50-60Hz OUTPUT: 20V 4.5A, 90W Connecter size: 7.9*5.0MM Package: 1x AC adapter & 1x AC power cable Tested Units, Safety: CE-/FCC-/RoHS-Certified for safety, over voltage protection, short circuit protection, over current protection. Manufactured in a professional factory. Features 100% Brand New Replacement AC Adapter. Dimensions: 7.01 x 5.04 x 2.01 inches.