Model: SH-U09C3 Main chip: FTDI FT232RL Isolation voltage: 1500VDC voltage isolation, with continuous short circuit protection Pin Definition: RXD,TXD,GND,VCC,P30(P30 is only for STC MCU) TTL Level: 3.3V or 5V USB interface: 2.0 The maximum speed: 3Mbps About indicator LED: PWM LED:Pow...