NOYITO 4-Channel 12V Computer USB Control Switch Relay Module Drive-free Relay Module Plug and Play Suitable for PC Smart Controller

USB Relay External Use Development Library Download Link: https://www.amazon.com/clouddrive/share/mI90aY9Ju2XDZhrUX9ZHzz6yAYpOvELp0fKcZxrrsNv Product parameters: Input voltage: DC 12 V; Input current: greater than 300mA; Wiring method: NC / COM / NO; Relay parameters: Maximum control AC 250V, 10A AC load and maximum DC30V 10A DC load; Module Application: Home intelligent switch control; Hotel intelligent switch; Hotel intelligent electrical control; Intelligent greenhouse; Shopping malls intelligent switch; Company plant intelligent switch; Internet cafes regular management; Karaoke timing control; Networking; Industrial equipment; Test equipment power control; Street lamp management; Intelligent management; Centralized power management; Package Inluded: 1*4-Channel 12V USB Control Switch Relay Module