Carefully optimized circuit, communication rate up to 12Mbps. TTL with 5V level. Onboard DC 5V interface, 500MA current output, load capacity. Onboard EROM, which can be configured to JRAG/SPI and other interface forms through FT PROG software. All available IOs are all exported. Each serial port has an transceiver indicator LED, which is convenient to observe the status of the serial portImmersive gold PCB, lead-free process, with mounting screw holes. Four serial ports are connected at the time, you can observe data at the timeParameters: Supply voltage: supply (5.0V) Current: 50MA. Baud rate: 1200-921600. Transmission rate: 12MBPS. Working temperature: -40--85 degree. Interface Description: VCC: supply (5.0V) RXD: The receiving pin of the module's own port (TTL level, not directly connected to RS232 level ) can be connected to the TXD of the MCU. TXD: The receiving pin of the module's own port (TTL level, not directly connected to RS232 level ) can be connected to the RXD of the MCUGND: GroundNote: 1. This is a 5V TTL level serial port, please do not 232 level equipment (+-5V to +-15V) 2. When this module is powered by USB, the load must not exceed 500mA, otherwise the module or computer USB may be overloaded and damaged (communication only requires three GND/TX/ wires). Material: PC+Metal. Color as shownPin function:The pins must be connected for normal communication:1. USB interface: to to a computer or computer, it must be connected. Turn the switch to the V-USB side to get from the USB.2.TX /C/D: Serial data transmission pin (refers to the module's own data outflow, corresponding to the . data of the external device.)3. /C/D: Serial data receiving pin (refers to the module's own data input , corresponding to the external device's TX. data transmission.)4. GND: ground (GND must be connected and must not be wrongly connected, otherwise it may damage the device or serial port module)The following pins are not necessary for communication, you can decide whether to according to your needs1. IO leads on both sides: including control pins such as //DCD/RI/DSR and 5V supply leads to the serial port, generally not used, please decide whether to or not according to your needs.2. Due to electrical characteristics, the pins on the IOs on both sides cannot be used for communication, but can only be used for measuring signals. For communication, please the on the white XH2.54 terminal. Other IOs can be used normally3. In the factory test, the TX/ are directly connected and can be removed during .Package Contents:1 x FT4232 4-channel USB to TTL Serial Port KitOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.