I have a prebuilt PC that works normally, but I want to add lighting. I'm using two AsiaHorse PSU cable covers, with each one needing an RGB connection, plus two three-packs of Lian Li SL-INF/SL FLEX fans, with each pack also needing a motherboard connection. My Gigabyte X870 GAMING WIFI6 motherboard has only three RGB headers, so I'm one connection short. What's the safest way to connect everything? I'm also not sure whether these devices use standard RGB or addressable RGB, or whether I should use a splitter or an RGB hub.
3 Answers
First check whether the devices use 5V three-pin addressable RGB or 12V four-pin standard RGB. They aren’t interchangeable, and plugging a 5V device into a 12V header can damage the LEDs. Once you confirm they use the same type, a compatible splitter can usually let two low-power devices share one header. Make sure the combined power draw stays below the header’s rated limit.
A splitter is generally fine for adding one extra connection when the total LED load is modest, but don’t choose one based only on the plug shape. Verify the voltage, pin count, and maximum current rating first. If you can’t confirm the power requirements, use a powered hub instead.
That makes sense. I was mainly worried that a splitter might overload the motherboard header, so a powered hub sounds safer if the fan packs draw much power.
A powered RGB hub is probably the cleanest option, especially if you’re connecting multiple fans. Connect the hub to the appropriate motherboard RGB header for synchronization, power the hub from the power supply, and plug the fans and cable covers into the hub. Buy one that specifically supports the same 5V ARGB or 12V RGB standard as your devices.
I’m not sure how to tell the difference. The connector layout and the labels on the motherboard or product manuals should indicate whether they’re 5V ARGB or 12V RGB.