TT Pure Duo 14 very dim

[NerdAl]

I purchased a set of Pure Duo fans with the intention to replace my front three case fans of 120mm.  I have a motherboard with aRGB on it and a hub with SATA power.  When I connect it with the cable E the fans work, flawless I might add, but the LEDs are very dim.  I have the Gigabyte Aorus Z790 Elite AX and my thermalright fans work very well.   I did not even give it much thought, as the cables are nice sleeved and have enough length to circle my motherboard twice (yes, they are very long).  And I already hear everyone, you have to plug it into a 5v header, well I do.  The cable only fits on the three pin header has it has a blocked off pinhole.

Hooking it up to the "controller" that is shipped with this product actually shows the fans light up properly.   Obviously, I would like them to synchronize with the existing fans through GCC.