The Thumby™ Link Cable is a cable that allows multiplayer gaming using two different Thumby gaming consoles. The cable consists of two micro B USB connectors and a 3-foot / 1-meter long cable.
Note: Other OTG cables may not be compatible for use with Thumby Multiplayer. The Thumby Link cable is a custom cable that connects GND to GND (pin 5), and ID pin to ID pin (pin 4) for data transfer.
Link Cable Connection Schematic