This is the Tekin RS Gen 2 Spec D2 Brushless Electronic Speed Control.                                                                                      FEATURES: Compatible with sensored, sensorless, brushless, and brushed motors             True ROAR spec mode only, no timing or boost features available                 High voltage programmable Battery Eliminator Circuit (BEC)                      HotWire PC interface for advanced programming and updating, EZ access programming port (HotWire Interface (TEKM1450), and Gen 2 Adaptor (TEKM3825) required)                                                          Forward, brake, and reverse operation                                           D2 Dual Drive Mode technology                                                   On-board temperature indicator                                                  Sensor plug for precise commutation with all motors                             Gold plated solder posts                                                        Pit tune mode                                                                   HDAC: High Density Copper PCB's                                                 Self test diagnostics and factory reset                                         DGF2 Digital Glitch Filtering V2                                                QuickTune programming with one-touch radio calibration                          120 day limited warranty through Tekin beginning at date of purchase                                                                                  INCLUDES: RS Gen 2 Spec D2 Brushless ESC with Instructions, Motor and Receiver Wires                                                                                                                                               SPECS: Input Voltage: 4-7 cells, 2S LiPo                                               BEC: 6.0V, 3.7amps                                                              Brushless Mode Motor Limit: 13.5 turn, 540 2-pole (36mm)                        Brushed Mode Motor Limit Forward Only: 20 turn silver can                       Brushed Mode Motor Limit Reverse: 20 turn silver can                            Max Current: 120amps per phase                                                  Timing Profiles: 7 choices on-board                                             Brushed Modes: Fwd Only, Fwd/Rev, Rev Delay                                     Brushless Modes: Fwd Only, Fwd/Rev, Rev Delay                                   Dimensions: 1.0 x 1.3 x .51" (25.4 x 33 x 12.9mm)                               Weight: .80oz (22.5g)