Specifications:.Input:100/240V 50- 60HZ.Output:20V, 3.42A 5.5mm*1.7mm.Compatible P/N: Aspire A114-31 A311-31 A314-31 A315-52 E1-432 E3-112 E5-421 E5-731 ES1-331 F5-571 R3-471T V3-575T V5-561