Metering Devices -Professional 8 Channel Relay Module Board With Stable and Durable Rugged Socket Highlights generic brand Professional 8 Channel Relay Module Board with Stable and Durable Rugged Socket Description: 8 Channel 5V Relay Interface Board . With optocoupler isolation. It is also capable of controlling various appliances and other equipment with large current. The maximum relay output contact is AC250V 10A and DC30V 10A. The standard interface can be directly connected to microcontrollers. Red working status lights ensure safe use. Widely used for all MCU control, industrial sector, PLC control, home automation control. Support all single-chip microcomputer control. Specification: Working Voltage: 5V Channel: 8 Channel Item Size: 13.4x5.3x1.7cm/5.28x2.09x0.67in Wiring Instructions: VCC: System Power Supply Positive GND: System Power Supply Negative IN1 - IN2: Port relay control Package includes: 1 x 8 channel relay module