Help! New Vewlix and want to add USB sticks without impacting the Jamma Harness in place

I have a complete Vewlix fresh of the boat from Japan, It came with a Jamma harness in place and I don’t want to lose that feature to plug and play boards… I do want to add couple of USB arcade sticks and mount a Motherboard in the case, I need some help on the best way to do this!

Best,
Havitz

Build a JAMMA to Brook UFB harness, maybe?

use one of these to wire your adapters, then wire a female jamma to this so the controller part of the original jamma gets shared to your new adapters.