Cable extension DELOCK 90870 for computer cooling systems, PVC, Ø 1.3 mm, black/red/white/yellow

DELOCK 90870 is a single-piece PVC cable extension designed for computer cooling systems and other small electronics. The flexible insulated conductor has a diameter of 1.3 mm and four colour-coded cores in black, red, white and yellow to match typical 3-pin fan and sensor wiring. Supplied in a polybag, this extension facilitates in-system routing, simple wiring repairs and trustworthy signal/power extension for fans and sensors.

Advantages

The cable uses PVC insulation that provides flexibility and basic protection against abrasion and light mechanical stress while remaining easy to route in tight spaces. Colour-coded cores simplify connection and reduce the risk of wiring mistakes during installation or repair. With a 1.3 mm conductor diameter and a single continuous length, the extension supports neat cable management and straightforward integration into PC cases, 3D printers and other devices that use 3-pin fan headers.

Suitable for

Key specifications

How to use

Identify the corresponding fan or sensor header and align the colour-coded wires with the target connector pins. For a secure electrical connection, strip an appropriate length of insulation, twist the conductor strands and use soldering, insulated crimp terminals or reliable wire connectors according to your application. Route the cable along existing cable channels or use cable ties to secure it and avoid contact with moving parts or sharp edges. Verify polarity and signal continuity before powering the system.

Recommendations

Use the extension for low-voltage DC fan and sensor connections only. Avoid exposing the PVC insulation to high temperatures, oils or solvents. When routing near moving fans or hot components, secure the cable to prevent abrasion and ensure safe clearances. For permanent or high-reliability installations, use proper crimp or soldered terminations and check connections periodically.