Mikrotik 18POW-US 24 vdc, 19 watt (.8 amp) universal switching power supply with 2.1mm DC plug. Narrow housing and right angle plug only uses a single space in a conventional power tap. Type A USA AC input plug operates from 100 to 240 vac. UL approved for use in the USA. Supports all Routerboards. Use with RB/P54 POE injector for POE support on all routerboards except RB200 and RB600 which should use 48vdc for POE.