Random shot in the dark, anyone ever work with these knock-off Zero Delay boards?

Have two of these as the main brain for a custom Hitstick and Crossup I'm building from spare parts and plastic containers + lid. The documentation and PCB labels says there should be several 5V and GND connectors that I was hoping to use to power the Jasen EZ SOCD's with screw terminal connection. But when it's wired up PC get's a constant error and doesn't pick up the stick (Code 43 when checking Windows USB Device Manager). Detects it fine as soon as I disconnect the "5V" wire. Is the documentation inaccurate? I unfortunately don't have a multimeter to test.

I'm gonna order some cheap USB A to B cables I can splice to create a custom wire connector to both PCB's from the Neutrik connection, but figured I'd ask since I've tried all the labeled ones in several combinations with no success...