| Pin # | Name | Description | | :--- | :--- | :--- | | 1 | GND | Ground | | 2 | A+ | Transmit+ (Data) | | 3 | A- | Transmit- (Data) | | 4 | GND | Ground | | 5 | B- | Receive- (Data) | | 6 | B+ | Receive+ (Data) | | 7 | GND | Ground | Embird Registration Key Free Fixed 💯