This chip, once installed in your Playstation 2 console, allows you to launch games and homebrews.
For experienced handyman, knowledge and soldering equipment are necessary.
Disassemble your console and install the chip (diagrams available on the internet).
Connect the adapter to the hard drive and screw the assembly into the slot provided for this purpose located at the back of your console.
Use the OpenPS2Loader homebrew to access your toy library and start your games.