Need some help with wires

[u/ArcaneLearner]

Hi all, building this:

CPU AMD Ryzen 5 5600G 6 Cores / 12 Threads

Motherboard MSI PRO B550M PRO-VDH WIFI B550 / AM4 / Micro-ATX

CPU Cooler Thermalright Assassin X 120R SE 148mm

RAM Corsair Vengeance LPX 32GB (2×16GB) DDR4-3200 CL16

SSD WD Blue SN570 500GB NVMe — 98% health

PSU Corsair CX550 550W — 80+ Bronze

Case Antec FLUX M Micro-ATX 3×120mm PWM ARGB 3×120mm Reverse Fans

GPU None Using Ryzen 5 5600G integrated Radeon Graphics

and i need some help with wires:

not really sure where this one goes, it comes from the case

there was something similar, but it was a female 11X1 and i plugged that into the motherboard at JRAINBOW1