This is the Castle Creations Castle Link V3 USB Programming Kit.        
     Compatible with Windows Vista, Windows 7, Windows 8 and Windows 10*       
                                                                               
FEATURES: Simple programming interface for the Castle Creations Phoenix, Talon,
            Thunderbird, QuadPack, DMR, Mamba, Sidewinder and Hydra controllers
            as well as accessories like Telemetry Link, and all Castle         
            Creations external switching regulators (BECs)                     
          Air users can customize values for low voltage cutoff, prop brake    
            strength, governor gain and more                                   
          Suface users can customize values for low-voltage cutoff, drag brake,
            torque limiting and more                                           
          Demo mode checks available settings without connecting device to     
            computer                                                           
          Downloadable updates                                                 
                                                                               
INCLUDES: Castle Link V3 USB Programming Kit with Standard USB Cable           
                                                                               
COMMENTS: *Macintosh users may use software such as Parallels Desktop,         
            VMware Fusion, or Apple's Boot Camp along with Windows Vista,      
            Windows 7, Windows 8 and Windows 10 to run the Castle Link         
            software, provided the Macintosh has an Intel processor.           
            Macintosh installation is not supported by Castle Creations.