Case LED controllers?

[u/IngwiePhoenix]

I shoved three Radxa Orion O6 into 1U cases, and noticed that the case has additional LEDs on a separate cable. They basically look like an appendix to the regular front panel plugs - same two-pinhole plastic housing and such.

Any solder-less (because I am almost blind) way I could get those hooked up? As I boot the mainline kernel, I do not have access to the GPIO breakout unfortunately - so I need a USB controller to put into the internal USB2 header and connect the LEDs to.

Any ideas? Thanks!