Noctua NA-SEC1 4-pin extension cables 30cm black 3-pack

Three-cable set for fan reach

The NA-SEC1 includes three 30cm extension cables that connect 4-pin PWM or 3-pin fans to motherboard headers or fan controllers. Black sleeving and connectors give a uniform look inside the case. The pack suits builders who need extra length for large enclosures or custom routing. Cables are rated for 5V, 12V and 24V Noctua fans and many third-party models.

Daisy-chain design for flexible routing

Each cable adds 30cm of reach and can be linked together for a combined 90cm run without extra adapters. The keyed 4-pin connector prevents misalignment when a 3-pin fan is used. Fully sleeved construction resists mechanical wear, heat and flames with a UL 94 V-0 rating. No additional headers or splitters are required to extend a single fan connection.

Sustained reliability in demanding environments

The sleeving maintains insulation integrity under continuous thermal load, making the cables suitable for industrial or high-temperature builds. Connectors retain secure contact over long periods without signal degradation. The set does not address builders who need in-line speed control or voltage regulation. Those functions remain on the motherboard or controller.