Need to split your stereo output into two mono channels? This cable plugs into a stereo 1/4" TRS jack (such as a headphone output) and splits it into individual left and right mono channels.
You can also use this Y-cable as an insert cable. Many mixing boards have insert jacks that let you break the signal path to add an outboard processor, such as a compressor. Just plug this Hosa cable in to your mixer's TRS insert jack, and plug the clearly labeled "send" and "receive" ends into your outboard gear's 1/4" TS input and output jacks.