This is the ElectriFly Silver Series Brushless ESC Programming Card.
For the Electrifly Silver Series 60A (GPMM1850), 80A (GPMM1860) and 100A Brushless Electronic Speed Controls
Allows adjustment of Brake (ON or Off), Motor Rotation (Forward or Reverse), Timing Angle (12 or 20°), Operating Frequency (8kHz or 16kHz) or custom setting of Low Battery Cutoff Voltage (5.6 – 37V)
ElectriFly Silver Series Brushless ESC Programming Card and instruction sheets
Placing included jumpers on specific pins to set desired features Connecting ESC and battery to labeled areas on card