Dc 12V 24V 8Ch Usb Serial Port Relay Optically Isolated Io Module Uart Rs232 Switch Board Ch340 For Win10 Win7 Linux Max Os 774048923484

Dc 12V 24V 8Ch Usb Serial Port Relay Optically Isolated Io Module Uart Rs232 Switch Board Ch340 For Win10 Win7 Linux Max Os 774048923484

Dsport

Description:   1: Working voltage: DC 12V/24V optional 2: (DC12V)Standby current (all relays closed) 11MA, 1 relay open 39MA, 2 relays open 67MA,

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