| Brand | Unbranded |
|---|---|
| Model | ELECTRONICS COMPONENT |
| Type | ELECTRONICS COMPONENT |
Check the listing for details. Keyboard Controller Board USB/BLE Controller for Pro2 Series. Condition: New. Listed at 88.00 USD. You can try to connect only one keyboard to see if it works normally. - Connect other devices to find the ones that may interfere. There are positive and negative labels next to the battery socket.