Manual Click here to open Overview This is USB (Universal Serial Bus) controlled relay Board with 8 channels Its used the HID technology so no need to install any driver in windows system & you can easy to use We also provide an application & the C develop library that you can easy to integrate this module to your project The relay can control the maximum voltage 250V 10A AC load & 30V 10A DC load Support WIN7 XP 32 bit systems Furtures 1 Adopting USB (Universal Serial Bus) HID mode for relay control suitable for various occasions & professionals 2 Easy to use suitable for a variety of operating systems such as WINDOWS 10 MAC LINUX etc 3 It has a power on memory function & works according to the last use situation when power is turned on 4 It has strong anti interference ability & adopts diode freewheeling protection 5 The contact part of the relay adopts double sided thick wiring which can be used for large currents which is safe & reliable 6 The input & output are all made from 5 08mm high quality terminal block the wiring is more convenient suitable for PLC control 7 Each relay has a pull in indicator & the working state of the relay is clear at a glance 8 Each relay output leads to two sets of electric shocks normally open & normally closed which are convenient & flexible to use 9 Fixed screw holes for easy installation 10 The finished product passes 100 functional test & stability test Applications Home automation Robotics Contorl Control doors a