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

APP Download: https://www.amazon.com/clouddrive/share/8Qn3vw8915JaZiv5bYzuBJWg1Ic4kibOcus1BhTJcrS The module uses HID technology, without any drivers, plug and play. Support WIN7/XP 32/64-bit systems, easy to use and simple. Onboard square USB interface connection stable. High-performance USB controller chip, military grade PCB board production. 24V relay, the relay can control the maximum 250V 10A AC load and 30V 10A DC load. Reserved 4, 8-way power interface, connected to power, even if the computer off or unplug the USB from the computer, you can also relay remains set. 1-way and 2-way no power connector. Control terminals Connection: NC / COM / NO. Voltage: DC 24V Load: 250V 10A AC / DC 30V 10A Max . Fixing hole size: 3mm. Mounting holes center distance: 52.2mm * 36.6mm. Support System: WIN7 / XP 32/64 bit systems. Size:71.6*65.3*20mm. * Windows software examples: VB6, BCB6, Java (netbeans), VB.NET 2010 Express, C++.NET 2010 Express * PCB parameters: FR4 / 1.5mm / two layers / metalized holes / HAL / white stamp / solder mask. Application: Robotics control Home automation Control doors and windows via windows system Controller power supply Package included: 1 x 4 channels 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. * The device must be supplied with 24V DC or order to work. * There is no protection against reversed voltage! If the VCC(+24V) and GND are reversed the board will be damaged! * The board can not work without computer. * If you need our software, please contact our customer service via email.