SMAKN® 12v 8 Channel USB Relay Module Programmable Computer Control;

This USB controlled relay board with 8 channels is used the HID technology- so there is no need to install any driver in windows system. It's convenient and very easy to use.
Specification:

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

Application:
Robotics control
Home automation
Control doors and windows via windows system
Controller power supply

Package included:

1 x 8 channels USB relay