Elnwnnkc 12V 8 Channel USB Relays Module Programmable Computer Control Switches/Driver/Intelligent Controller Controlled

Onboards square USB interfaces, stable connection Using imported high-performances USB control chip and special relays driver chip ULN2803, the relays works more stably It can be apply to home intelligent switches control, hotel intelligent switches control, hotel intelligent electrical appliance control, shopping mall intelligent switches, company factory intelligent switches, Internet cafe timing management, karaoke timing control, Internet of Things, industrial control equipment, equipment power control, street lamp management, intelligent management, centralized power management The module adopts technology, which is of foreign trade and not need any driver The downloaded data comes with its own application program, plug and play WIN7, XP 32bit, 64bit systems, easy to use Two ways to access power supply is and flexible After connecting the power supply, the relays can remain set even the computer is turned or USB is pull out from the computer