This is the Castle Creations Sidewinder SV3 12V Electronic Speed Control. FEATURES: Recommended for all 1/10 scale buggy and truggy applications that weigh less than 5lbs (2.25kg) ready to run (not for use in heavier vehicles such as E-Revos or E-Maxx class vehicles) USB programming capability via Castle Link USB adapter (not included, order CSEM6300) Waterproof for use in nearly every environment (not intended for operation while submerged in liquid) Compatible with the Castle Creations 14xx series NeuCastle motors Reversible with reverse lockout INCLUDES: Sidewinder SV3 12V ESC with 13 gauge Motor Wires, 4mm Female Bullet Motor Connectors, 13 gauge Battery Wires with Pre-Tinned Leads, Receiver Connector, On/Off Switch, Instructions REQUIRES: Battery connector of modeler"s choice SPECS: Input Voltage: 2S LiPo minimum, 3S LiPo maximum, 9 cell NiCd/NiMH Brake: Proportional Reversible: Yes, with lockout Dimensions: 1.93 x 1.48 x 0.79" (49 x 38 x 20mm) Weight: 1.96 oz (55.5 g) with 5" (127mm) long battery wires and no battery connector jxs 01/10/13 ir/jxs