This is the Castle Creations Mamba Max Pro Speed Control.           
                                                                               
FEATURES: ROAR legal for 1/10 scale applications                               
          Sensored and sensorless motor operating modes                        
          Handles up to 6S LiPo input                                          
          Switching BEC provides power for servo and receiver all the way to   
            6S                                                                 
          Profiles can be custom designed on a PC with the Castle Link         
            PC programming software (software not included, can be             
            downloaded for free from Castle's website, voucher is included for 
            free Castle Link Programmer)                                       
          Infinitely adjustable throttle and brake curves with timing advance  
          Punch Control allows dialing in horsepower where needed              
          Brake Strength allows straight tracking under hard braking           
          Drag Brake helps entry into corners                                  
          Start Power for smooth launches                                      
                                                                               
INCLUDES: Castle Creations Mamba Max Pro Electronic Speed Control with Cooling 
            Fan and 4mm Bullet Connectors                                      
          Voucher for free Castle Link Programmer                              
          Two 3x6mm Cap Head Screws