This is the Sanwa/Airtronics Super Vortex Gen2 ESC Program Box. This program box is compatible with the Sanwa Super Vortex Gen2 ESC's and provides a convenient method to program your ESC, as well as an easy method to update your ESC's firmware.
The Super Vortex Gen2 Program Box also features a MicroSD card slot (MicroSD card not included) to allow you to save your programming changes.