Adding a lit Hydrus cable to a build raises a fair question for anyone who has not fitted an extension before: does this mean replacing the power supply, or opening up its modular cable bay? Neither, as it turns out.

Quick Answer

Hydrus cables are male-to-female extensions, so the existing supply and its factory lead both stay in place. Only the visible run changes. That means any ATX supply works, modular or not, and the lit head is added to the build rather than replacing part of it.

🔌 Extending rather than replacing

A Hydrus cable is a male-to-female extension by design, meaning it joins onto the far end of whatever 24-pin lead your existing power supply already has, rather than plugging directly into sockets on the supply itself the way a genuine modular replacement cable would. Because of that, whether your supply is modular or fixed-cable makes no practical difference at all - a fixed-cable unit works exactly the same way as a fully modular one, since the extension never touches the supply's own connection points.

📍 Where the original factory lead ends up

The factory 24-pin lead stays fully connected to the power supply exactly as it always was, and its far end now meets the extension instead of plugging directly into the board. Most builders route that original lead's surplus length behind the motherboard tray once the extension is fitted, keeping it tucked out of sight while the sleeved extension takes over the visible portion of the run.

🛠️ Nothing about the supply itself is touched

The power supply is not modified in any way by this process - the extension is simply added between two points that already existed, the supply's factory lead and the board's socket, without altering either one. That means removing the extension later, for whatever reason, returns the build to precisely how it started, with no lasting trace of the change and no components left in an altered state.

💡 Does the added junction affect the lighting at all

No - the ARGB lighting operates entirely through its own independent 5V 3-pin lead running directly to the board, completely separate from the power connection itself, so the new junction between factory lead and extension has zero bearing on how the lighting functions or connects. The two systems, power and lighting, run on entirely separate paths despite sharing the same physical cable.

🔄 Compatibility, added length, and full reversibility

Any power supply with a standard 24-pin lead works with this extension regardless of age, since the piece is matched specifically to the connector shape rather than to any particular supply model or manufacturer - an older unit is no obstacle provided its main connector follows the standard layout. It is worth knowing this does add 30cm on top of whatever length the existing lead already has, so the factory cable's original length needs somewhere sensible to sit once the extension goes in, typically behind the tray alongside the new junction point. And the whole process remains fully reversible at any point: unplug the extension, reconnect the original factory lead directly to the board, and the build returns entirely to its earlier, unmodified state with nothing missing and nothing altered. This piece's own shelf is worth a scroll at cable solutions, while other non-destructive lighting accents sit over at NZXT case lighting.

Frequently Asked Questions

Does the supply need to be modular?

No. The extension joins the far end of whatever lead your supply already has, so a fixed-cable unit works exactly the same way.

What happens to the factory 24-pin lead?

It stays connected to the supply and now meets the extension instead of the board, usually tucked away behind the tray.

Is any part of the supply modified?

Nothing at all. The extension is added between two existing points, and removing it returns the build to how it started.

Does the added junction affect the lighting?

No. The lighting runs on its own 5V 3-pin lead to the board and is entirely separate from the power connection.

Will an older supply work with this?

Provided it has a standard 24-pin lead, yes. The extension is matched to the connector rather than to any particular supply model.

Does this add length to the run?

It adds 30cm on top of the existing lead, so the factory cable needs somewhere to sit once the extension is in place.

Can it be removed later without trace?

Yes. Unplug the extension, reconnect the original lead to the board, and the build is back to its earlier state.

Wondering if a lit cable means replacing your PSU? See Evetech's power supply range and confirm your existing supply works with a simple extension instead.