This is the Mamba Monster 2 25V Electronic Speed Controland the Neu Castle 1512 1Y 2650kV Motor, from Castle Creations.FEATURESNeu Castle 2650kV Brushless Motor;High quality oversized ABEC-1 front and rear ball bearingsSintered Neodymium magnets6.5mm gold connectors with 10 gauge wires (OK to shorten)Mamba Monster 2 25V ESC;Compatible with on-road vehicles and buggies, running up to 4S LiPobatteries and weighing up to 9lbs (4.0kg)USB programming capability via the Castle Link USB adapter (CSEM6300Solder posts allow battery wire length and direction to be easilychangedINCLUDESMamba Monster 2 25V ESC with Cooling Fan, On/Off Switch, Fan Plug,Motor Wires, Receiver Wire with Connector and Instructions2650KV Neu Castle Brushless Motor with 10 Gauge Leads, Connectorsand Instructions