Features 1、STABLE PERFORMANCE: Equipped with a reliable USB to serial chip and microcontroller, this USB relay module allows for control of relay switching via serial commands sent from a computer using serial debugging software. 2、REMOTE CONTROL: Utilize serial debugging software on a computer to send serial commands and remotely toggle the on/off status of 8 channels of relays with ease. 3、ADVANCED CHIPSET: Features a high performance microcontroller chip and type c control chip for efficient use. Includes power LED indicator and relay status LEDs for visual monitoring. 4、ROBUST RELAYS: Onboard 8 channels of 5V, 10A/250VAC, 10A/30VDC relays with a long lifespan of up to 100,000 cycles, ensuring reliable performance for various applications. 5、PROTECTIVE FEATURES: Ensures safe and reliable use with over current protect and relay diode protect, safeguarding the module and connected devices from potential damage due to power surges and other electrical issues. Specification Item Type: 8 Channel USB Relay Module Material: PCB Power Supply Voltage: 5V Power Supply Method: Type C Interface / Pin Header Control Interface: Type C Interface / Pin Header USB Chip: GD32F103C8T6 Baud Rate: 115200bps LED Indicator: Power Indicator Light and Relay Status Indicator Light Circuit Design: With Overcurrent protect and Optocoupler protect Function Output Type: Relay Common Terminal, Normally Open Terminal, Normally Closed Terminal Load Type: 10A/30VDC, 10A/250VAC Load Package List 1 x Relay Module 1 x Connector Wire 1 x USB Cable