- From one USB input to four serial uart port.
- Used FTDI FT4232 chip, up to 2Mbps, windows friendly.
- All 4x TXD and RXD LEDs, one power supply LED.
- Lead out 5V and 3.3V power supply, each provide up to 0.8A for all channels (not each).
- 4x pin header: 5V, 3.3V, TXD, RXD, GND.
- Logic power level select jumper 3.3V/5V on back side of the board, default connect to 5V.
- Each channel is connected by jumper for testing purpose.