KNACRO 4 Channel 12V USB Control Switch Relay Module No Driver Required Plug and Play PC Smart Controller

APP Download: https://www.amazon.com/clouddrive/share/8Qn3vw8915JaZiv5bYzuBJWg1Ic4kibOcus1BhTJcrS This is USB controlled relay module with 4 relays SRD-12VDC-SL-C. 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 * Relay specification: 10A 250VAC/10A 125VAC/10A 30VDC/10A 28V DC * Power Supply: 12 VDC *Relay type: 12V relay *Contack type: NC / COM / NO *Input current: ?300mA *Input voltage: DC 12V *Max load: AC250V/10A or DC30V/10A *Support Win XP/Win7/Win8 32-bit systems * Current consumption: 300 mA * Led for each relay output: Power Led / USB led * Size: 71.6*62.3*16mm * 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