+

2 in 1 DC 5V 12V 24V 8ch USB Serial Port Relay Module UART RS232 TTL Switch Board CH340 for Smart home / Wireless Instrument

USD 0.60USD 0.88

2 in 1 DC 5V 12V 24V 8ch USB Serial Port Relay Module UART RS232 TTL Switch Board CH340 for Smart home / Wireless Instrument

Description
Specification
+