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 brakestrength, 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.