This module allows you to connect and route external audio into your Eurorack modular system. It is a compact and simple way to patch in external line-level instruments (like synths and drum machines), outputs from your DAW, rack-mount or desktop FX units, or any other line-level source. Simply connect your source to the Line In 1U 1/4″ jack, where it’s transformed into eurorack levels, and ready to patch into any module through the 1/8″ output.