This is a Castle Creations CSECCBEC RX Battery Eliminator Switching Regulator. This handy gadget eliminates the need for a separate receiver battery pack by providing your receiver with a user-selectable 4.8V-9.0V supply of power from your main batter. It offers a 10A maximum output and accepts power input from up to 6S (6-cell Li-Po) battery packs - and it weighs in at only 11g! It measures 1.2x0.6x0.4 (30x15x10mm). This is a must-have for the performance minded pilot.
