... 12v/15v/16v/18v/19v/20v DC 6A 24v/5a3.7 voltage output4:8pcs dc connectors5.protection :short circuit protection .overload ... mm • 4.0 x 1.7 mm • 4.8 x 1.7 mm • 5.5 x 1.7 mm • 5.5 x 2 ... of overload, overheat and short-circuit protectionsOutput voltage selected by rotary switch Compatible with many manufacturers'models, including Averatec, IBM, SONY, DELL ...