This is the Castle Creations Castle Link V3 USB Programming Kit.
Compatible with Windows Vista, Windows 7, Windows 8 and Windows 10*
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
Castle Link V3 USB Programming Kit with Standard USB Cable
*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.