Here we have a UBEC (universal battery eliminator circuit). Glider pilots using a UBEC can use a Lipo battery instead of a NiHm to power their radio gear. In power planes the UBEC can be used as a secondary or redundant power supply for the radio gear. With combination BEC / ESC's you will loose power to your radio gear if the ESC fails. Using a stand alone BEC gives you a shot at saving the plane if an ESC failure should occur.
This UBEC delivers a steady 6 amp output and will deliver up to a 8 amp burst. The output voltage is adjustable to 5 or 6 volts by moving a jumper. The power input connector is a JST and the output lead is a standard servo plug equipped with a electrical noise suppressing ferrite bead.