The MPO System utilizes the multi fiber MPO connector and modules to provide a plug and play modular system that is easy and quickly to install. Using the MPO system no terminations or splicing is required on site. The multi fiber cable assembly can be plugged in to the rear of the modules and the modules can be plugged in to the panel for patching using standard SC or ST patch cords. The 12 fiber Pre-Term is quickly connected to the cassette and the latter mounted in the patch panel.