It is double-sided compacted PCB and it is also high quality.

It has Opto-Isolated inputs. And optoisolated inputs mean digital electronics are safe and noise-free.

This 6 relay module board is active low 5V.

This board consists of 6 relays, and this board can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc.

These relays are used to control various appliances and other equipment with large current.

Its maximum output contact is AC 250V, 10A, and DC 30V 10A.

Its standard interface can be directly connected with the microcontrollers.

There are red working status indicator lights and it shows the safe use of the conductive.

It is widely used for all MCU control.

It is also used in the industrial sector, PLC control, smart home control.