This is the CC BEC Pro High Output Switching Battery Eliminator Circuit (BEC)from Castle Creations.

FEATURES: Ideal for use in larger RC cars, electric aircraft, and electric helis 500 size and larger that have high power demands for their radio

system Also works well in larger electric powered RC aircraft and RC crawlers and monster
trucks that use high powered SERVOS

INCLUDES: CC BEC Pro High Output Switching BEC with connectors and instructions
SPECS: Max Input: 12S (50.4V)
Max Output Current: 20 amps peak
Adjustable Output Voltage: 4.8V-12.5V
Max Continuous Current: Input Voltage Max Continuous Output Current
16V 15A
24V 13A
32V 11A
40V 9A
48V 8A
Length: 1.69" (43mm)
Width: 1.3" (33mm)
Height: 0.94" (24mm)
Weight (w/o wires): 1 oz (29 gr)