3-channel relay module with USB to CH340 serial control interface

Product Description Three-channel USB to CH340 serial port control relay module 1. USB serial port control relay, serial port control, long life, overcurrent protection. 2. USB serial port control relay, newly upgraded version, adopts a new optocoupler protection circuit to prevent interference and support high-speed transmission. 3. The relay output terminal can be regarded as an electronic switch to control the on/off state of the circuit. There is actually no voltage output at the module load terminal. 4. When there is no voltage in the relay coil, the relay is not energized, and the common terminal (COM) is connected to the normally closed terminal (NC). When there is voltage, the relay is energized, and the common terminal (COM) is connected to the normally open terminal (NO). 5. USB Serial Port Controlled Relay Relay Power Supply: 5V Power Supply Method: Type-C Interface (Pin Header) Control Interface: Type-C Interface (Pin Header) Microcontroller Chip: GD32F103C8T6 Baud Rate: 115200bps LED Indicators: Power indicator and relay status indicator Circuit Design: Overcurrent protection and optocoupler protection Output Type: Relay common terminal, normally open terminal, normally closed terminal Load Type: 10A/30VDC, 10A/250VAC load Product Dimensions: Approx. 58x32mm There may be slight differences in appearance, color, and printed characters between different batches of products, but this will not affect their use. Color: As shown in the picture Material: PCB Model: DSTUR-T30 Three-channel Package Contents: 1 Serial Port Controlled Relay (Type C) 1 Type-C data cable (50cm) 1 10-pin 2.54mm female-to-female DuPont cable (20cm) This package only includes the above contents; other products are not included. Note: Light reflection and different monitors may cause the color of the item in the picture to be slightly different from the actual product. Measurement error is +/- 1-3cm.