3 individual 1/4 to 1/8 inch adapter
Our 1/4 to 1/8 inch adapter allow you to connect one 1/4 inch jacks to an 1/8 inch one right in from your rack.
Now you can leave all those cable adapters behind.
http://www.addacsystem.com/product/addac200-series/addac200s
No info about availability.
$52