Powercon in, and 1 out for next rack or so, + 7 normal outlets for rack gear, on/off switch, I will order some more for my other racks, it is doing what I need it to do, cleans up the rack and with masterswitch for the rack, using it on stagebox racks and effect/guitar rack, ratet for 16 amp, but not checked internal cabling if it is thick enough cables for use with power amp racks