There's almost nothing left inside a PC that could be fitted with RGB LEDs. At least that was our assumption until we came across
iBUYPOWER Elite Gaming PC Computer Desktop ARCW 105A (AMD Ryzen 7
Where do these cables go? Are they for rgb? : r/iBUYPOWER
Driverless 120V RGB Strip Power Cord with Built-in Controller
iBuyPower RGB Light Changes : r/iBUYPOWER
CES 2018: iBUYPOWER, MSI and ORIGIN announce new gaming PCs
CES 2018: iBUYPOWER, MSI and ORIGIN Announce new Gaming PCs
iBUYPOWER Gaming PC Desktop Trace 9220 Liquid Cooled Overclockable
RGB LED Smart Lighting for Cases at iBUYPOWER
iBUYPOWER Pro Gaming PC Computer Desktop Element
iBUYPOWER Pro Gaming PC Computer Desktop Intel i9-9900K 8-Core 3.6