12v Usb Relay Board 8-channel 12vdc Type-b Usb Module Controller

[FTDI Chip]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.[USB Relay Controller]The device must be supplied with 12 VDC to work.[Tips]There is no protection against reversed voltage If the VCC(+12V) and GND are reversed the board will be damaged.The board can not work without computer.[High Quality]Brand New and high quality USB relay controller,it is a perfect choice if you are in need of such a product.Material: PCB boardcolour: bluePackage Contents:1 x 8-Channel 12V Usb Relay BoardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.