Get rid of those bulky power-hungry heat-producing mains adaptors. This adaptor uses state-of-the-art switching power and feature some major advantages, such as: cooler running, stabilized outpurt, short-circuit and overload protection, compact design and very low idling consumption.
Features:

5 detachable DC plugs

For notebook computers & personal digital electronic devices

Stabilized output, low ripple and low interference

Adjustable output voltage

Short circuit & overload protection

High efficiency & low energy consumption
Specifications:

Supply Voltage: 100-240V AC 50/60Hz

Power: 70 Watts Maximum

Efficiency: >=70%

Output:

15, 16, 18, 19, 20V DC 3.5A regulated

22, 24V DC 2.9A regulated

Dimensions: 5.5" x 1.7" x 3.1"