Mamba Monster X Waterproof Electronic Speed Control CSE010-0145-00

Castle Creations Mamba Monster X ESC with On/Off Switch, pretinned Battery Leads, Receiver Connector, Female Motor Connectors, 30mm Cooling Fan and Instruction Booklet. If unit is operated in wet conditions, rinse with fresh water to remove dirt or corrosives, then fully dry unit.

eBay