Laptop Network AdaptersProduct parameters:Input voltage: AC100-240V 50~60HZ()Input AC interface: Chinese standard Output voltage: (DC) 12V/19VOutput current: 2A-5AOutput voltage accuracy ±0.5% (no load)Power polarity: inner positive and outer negative, inner (+) outer (-)DC interface: 5.5*2.5 combined with 5.5*2.1mmColour: BlackPrecautions for use:※ Please do not use it beyond the rated input voltage and output current range, and it is strictly prohibited to short-circuit the output interface (voltage).※ Please pay attention to heat dissipation and ventilation when using it. If the temperature of the adapter is too high, please stop using it and check the reason.※ It is strictly prohibited to use in humid or high temperature environments Laptop Network Adapters Item Weight 5.8 ounces Manufacturer ADBWEKKF Item model number ADBWEKKF Package Dimensions 6.69 x 4.72 x 3.54 inches