This module can be purchased on Xinabox CC.
About the OC03
This ☒CHIP forms part of the output modules and is equipped with a high speed IO expander chip. The OC03 module provides is able to switch loads between 0~60V AC/DC at a max load current of 500mA.
The OC03 ☒CHIP is housed in an compact 2U×2U chip with three connection ports.
To install the libraries please followed the guide provided on the Arduino Website under "Importing a .zip Library".