8-Channel USB-Controlled Relay Module
27.50 $
RM8U is an 8-channel USB-controlled relay module. It can be used to control electrical devices remotely from a PC over a USB port such as lamps, motors, and locks. RM8U features a wide operating voltage range (9-40V) and supports serial communication baud rate speeds starting from 2400 up to 115200 bps. RM8U module is well protected, filtered, and fully isolated.
Features:
- Supports Windows XP, 7, 10, and 11.
- Supports 8 relay outputs.
- Wide operating voltage range: 9~40 DCV.
- Control: Serial communication.
- Driver: CH340.
- Supported baud rates: 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 76800, and 115200.
- Interface: USB type B connector.
- Simple control protocol: Just two-character commands.
- All outputs are optically isolated.
- Both normally open and normally close relay contacts are available.
- Reverse polarity protection.
- On-board DC power filter.
- Power LED indicator.
- Serial communication LED status.
- LED indicator for each relay.
- Mounting: Four (Ø 3.5mm) mounting holes for easy installation.
- Dimensions: 214 X 55 X 21mm.









