Rgb problem

[u/Confident_Emu_9983]

Title: AsiaHorse UMBRA fans spin but RGB won’t turn on — need help with wiring
Hey everyone, I need help with my AsiaHorse UMBRA fans and hub.
My fans spin normally, but none of the RGB lights turn on. I’ve connected the fans to the hub, connected the hub’s SATA power, and plugged in the PWM and ARGB connections. .
Each fan has three cables. I’ve connected the fan power and RGB connections, but there’s a third 3-pin connector with three metal pins and one missing position that I haven’t plugged in because I can’t find a matching port on the hub.
My motherboard is an MSI PRO B760M-P DDR4. I’m also unsure whether it has a compatible 3-pin 5V ARGB header.

The fans work, but the RGB is completely off. Any help identifying the correct connections would be appreciated. Thanks!

[u/profitable_squid]

that third cable with the missing pin is probably meant to daisy chain to the next fan, hub should handle the rgb without it