InLine switch for turning case fans on and off

The InLine Switch InLine 33328Z is an inline manual switch for turning a chassis fan on and off. It connects via a standard 3‑pin fan connector and passes the fan speed (tachometer) signal while providing a simple mechanical control to interrupt power to the fan. The switch housing is multicolour and designed for use inside PC cases or other enclosures where a compact on/off control for a 3‑pin fan is required.

Advantages

The switch provides straightforward manual control of a chassis fan without altering fan speed control circuitry and preserves the speed signal for monitoring. Its compact inline design fits standard 3‑pin fan cables and is compatible with a wide range of 3‑pin fans. Multicolour housing aids visual identification and the mechanical construction offers reliable on/off operation.

Suitable for

Key specifications

How to use

Disconnect power from the system before installation. Insert the inline switch into the fan power cable by connecting the male and female 3‑pin connectors between the fan and the motherboard or fan hub. After installation, restore power and use the switch to interrupt or restore the fan's 12 V supply; the tachometer wire remains connected so fan speed can still be read by the system.

Recommendations

Use this switch for occasional manual control of chassis fans; avoid frequent switching under load and ensure connectors are fully seated. Do not use in place of proper fan control if continuous or variable speed management is required. Install inside the chassis away from moving parts and routing that could stress the cable.