5V 4-Channel Relay Control Module for Arduino ARM PIC AVR DSP Electronic, 501 Original

Features:Supports AC250V 10A and DC30V 10A high power.Safe and stable independent connector part wiring.Suitable for 51/AVR/AVR/ARM.Easy installation.Double sided FR-4 board design.With relay status indicator light.Directly controls devices and loads.With 4 NO and 4 NC connectors.Specification:Output Frequency: 1KHzSuitable for: 51/AVR/AVR/ARMNet Weight: approx. 55 gSize: approx. 72 X 53 X 16 mm/2.83 X 2.09 X 0.63 inModule Port:VCC: to positive 5V powerGND: to negative 5V powerIN1-IN4: signal trigger portRelay Output:NO1-NO4: normally open portsCOM1-COM4: common portsNC1-NC4: normally closed ports1 X 4-Way Relay Control Module