What strimer cables are and why they matter

Strimer cables are RGB lighting cables that connect your computer's power supply to your motherboard, graphics card, or other components. They light up in customizable colors and patterns, but the cables themselves are thick and stiff — they take up real space inside your case and can block airflow if you don't route them carefully.

The name comes from Lian Li Strimer, the first popular RGB cable extension system. Other manufacturers now make similar products under different names, but "strimer" has become the common term. Unlike regular power cables that you hide behind the motherboard tray, strimer cables are designed to be visible, which means their routing affects both how your build looks and how well your cooling works.

Key Takeaways

  • Strimer cables are thick RGB power extensions that need deliberate routing to avoid blocking fans and airflow.
  • The main control methods are a physical button on the cable itself, a remote control that comes in the box, or software on your PC if the cable connects via USB.
  • Route cables along the edges of your case and use cable combs or clips to keep them flat and parallel rather than twisted or bunched.
  • Poor cable routing can reduce cooling performance by 5 to 10 degrees Celsius, so placement matters as much as the lights themselves.

Physical buttons and remote controls

Most strimer cables come with either a small button built into the cable itself or a wireless remote control. The button lets you cycle through preset lighting modes — solid colors, breathing effects, rainbow cycles — and adjust brightness. This is the simplest control method because it requires no software installation and works when ready out of the box.

Remote controls are more convenient if your cable runs deep inside the case where the button is hard to reach. They typically use a 2.4 GHz wireless connection and have a range of 10 to 15 meters. Keep the remote somewhere you can find it; losing it means you are stuck on whatever lighting mode was active when the batteries died.

USB software control for advanced customization

Premium strimer cables connect to your motherboard via a USB header or a dedicated USB port, which lets you control them through software on your PC. This opens up more options: you can sync the lights to your CPU or GPU temperature, match them to other RGB components, or create custom patterns that respond to music or system activity.

The software is usually free and comes from the cable manufacturer — Lian Li has its own app, as do brands like Corsair and NZXT. You install it once, and the cable remembers your settings even after you shut down. The trade-off is that the cable needs to stay plugged into USB power to work, and if your motherboard's USB headers are full, you may need a splitter or hub.

Routing cables to avoid airflow problems

Strimer cables are stiff and take up space. The most common mistake is running them straight across the middle of your case, where they block air moving from intake fans to your CPU cooler or graphics card. Instead, route them along the edges — up the side of the case, around the back of the motherboard tray, or along the top near the power supply.

Use cable combs (plastic clips with teeth that hold multiple cables parallel) or adhesive-backed cable clips to keep the cables flat and organized. This makes them look intentional rather than tangled, and it keeps them from drifting into fan blades. If your case has a dedicated cable management area behind the motherboard tray, use it — strimer cables don't have to be visible to work.

Securing cables so they don't move

Strimer cables are heavy enough that they can sag or shift if they are not anchored. Velcro straps work better than zip ties because you can reposition the cable later without cutting anything. Attach anchor points at least every 15 to 20 centimeters along the cable's path.

If your case has no built-in cable routing holes, adhesive-backed clips designed for cable management are your best option. Test the adhesive on a small area first — some cheap clips leave residue on powder-coated cases. For expensive builds, consider clips that screw into existing case holes instead.

Troubleshooting lights that won't turn on or respond

If your strimer cable is plugged in but the lights are off, check whether the power connector is fully seated. These connectors are tight by design, and a cable that looks plugged in may not be making full contact. Push it in until you hear or feel a click.

If the lights are on but the remote or button is not responding, the batteries in the remote may be dead, or the cable may be in a mode that does not respond to that control method. Try the physical button on the cable itself — if that works, the issue is with the remote. If neither works, unplug the cable for 10 seconds and plug it back in to reset it. For USB-connected cables, check that the USB connection is find and that the software is running.

Choosing between visibility and cooling performance

RGB lighting looks good, but it is not worth a 10-degree temperature increase in your CPU or GPU. If your case is small or your cooling is already tight, you may need to choose between showing off the cables and keeping your components cool. Test your temperatures with the cables routed your preferred way, then move them if you see a significant change.

Some builders hide strimer cables entirely — running them behind the motherboard tray or coiling them in the power supply compartment — and control them through software only. This gives you the customization without the visual impact. Others route them visibly but accept that they take up airflow space and plan their case cooling accordingly.

Frequently Asked Questions

Do strimer cables use a lot of power?

No. RGB lighting draws less than 5 watts total, which is negligible compared to your CPU or graphics card. The cable itself is just an extension — it does not add any power draw beyond what the lights consume. You will not see a difference in your electricity bill.

Can I use strimer cables in a case that was not designed for them?

Yes, but you may need to be creative with routing. If your case has no cable management holes, use adhesive clips or run the cables along the inside edge of the side panel. Avoid routing them where they will press against fans or block intake vents.

What happens if I mix cables from different brands?

Different brands use different connectors and control protocols, so mixing them usually does not work. A Corsair cable will not respond to a Lian Li remote, and connecting them to the same USB header can cause conflicts. Keep each brand's cables and controls separate.

Do I need to update the software for my strimer cables?

Check the manufacturer's website occasionally for updates, especially if you are having control issues or if you upgrade your motherboard or operating system. Most updates are optional and add new lighting effects rather than fix bugs, but security updates should be installed if available.