TRS Distributor chan is a passive, battery free utility PCB to distribute/merge TRS signals such as KORG sync, audio etc. It would be useful for some situations in your musical life, for example syncing multiple devices without cascading.
All of the I/Os are created equal. If you input signal from one of the I/O, then it goes to all of the other I/O terminals via resistors.
If you input signals from multiple I/Os, they will be mixed you can obtain it from other terminals via resistors.