Sufficient power, good anti-interference performance and small DC ripple.The power supply has low operating temperature and long service life.The insulation performance is good, and the high-frequency transformer is 100% vacuum infiltrated.The product has short circuit, overload and overvoltage protection functions.It has perfect over-current, over-voltage, short-circuit, over-temperature and overload protection functions.Type: Power AdapterApplicable form of charger: direct chargeApplicable products: LaptopsInput voltage: AC100-240V.50-60Hz.Output voltage: 19.5VOutput current: 3.9AWork efficiency: Greater than 83%Output power: 90WAC input interface: plum blossom triangle interfaceColour:blackMaterial:ABSSize:127 x 50 x 30mmDC output interface: 6.5x4.4mmPackage Contents:1 x Power AdapterOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.