1/2/4/8-Channel 10A PC USB Control Switch Relay Module Free Drive Programmable Computer Control Computer USB Control Switch Driver PC Intelligent Controller (24V 8-Channel)

This is USB controlled relay module with 1/2/4/8 relays  You may use it for simple ON/OFF switching electrical devices - home lights, DC motors, solenoids and others. It may help you building projects like robotics and home Automation. Each such board requires one USB port. The more USB ports you have the more Relay boards you may connect. You may use it with our software( universal software for all our relay boards). Specification 1.Relay specification: 10A 250VAC/10A 125VAC/10A 30VDC/10A 28VDC 2.Power Supply: 5/12/24 VDC 3.Relay type: 24V relay  Contack type: NC / COM / NO  Input current: Greater than 300mA  Input voltage: DC 24V  Max load: AC250V/10A or DC30V/10A  Current consumption: 300 mA Led for each relay output: Power Led / USB led Application: Robotics control Home automation Control doors and windows via windows system Controller power supply Package included: 1 x USB relay Note: When the board is connected to the PC and the PC is restarted, the relays will be toggled several times. This is because of the structure of the FTDI chip. There is no protection against reversed voltage! If the VCC and GND are reversed the board will be damaged! The board can not work without computer.