This is the SC-15 Electronic Speed Control with Reverse from HPI.

FEATURES: For use with motors down to 15 turns
          16 AWG motor wires with 4mm female bullet connectors
          16 AWG Battery wires with Kyosho type connector
          Universal receiver connector
          On-off switch

INCLUDES: HPI SC-15 Electronic Speed Control with connectors and on/off switch
          Instruction sheet

REQUIRES: Installation in the vehicle

SPECS:    Input Voltage: DC 6-8.4V
          Compatible Motor: 15T-17T
          Max. Instantaneous Current (F/R): 150A/75A (10 sec)
          Brake Current: 150A
          Setup: Automatic
          Protection Circuit: Overheat Protection

                                                                    cnh 11/9/09
                                                                         ir/jxs