Build Your Own Mouse Cable with Lethal Cable DIY

By Lethal Gaming Gear | Published: 2026-10-24

Category: How-to Guides

Learn how to assemble a custom mouse cable using the Lethal Cable DIY kit with JST 2.0 connectors. This guide covers tools, steps, and common pitfalls.

Quick answer

You can build a custom mouse cable using the Lethal Cable DIY kit with JST 2.0 connectors. It requires basic tools and careful assembly for a lighter, more flexible cable.

What you need before starting

The Lethal Cable DIY (JST 2.0) comes with a rubber adapter in a bag. You'll need a wire stripper, small screwdriver, and a lighter or heat gun for shrinking the paracord ends. The cable length is 1.7m from connector to connector, so plan your routing accordingly.

Why build your own cable?

A DIY cable lets you choose colors and length for your setup. The Lethal Cable DIY is thinner and more flexible than stock cables, reducing drag during fast movements. The trade-off is that assembly takes about 30 minutes and requires patience with small parts.

Building steps

Prepare the cable ends: Strip about 5mm of insulation from the cable ends using a wire stripper. Twist the exposed wires gently to prevent fraying. Don't strip too much insulation – 5mm is enough for a secure connection without exposed wire.
Attach the JST 2.0 connector: Slide the rubber adapter onto the cable first, then crimp the JST 2.0 connector onto the stripped wire using pliers. Ensure the metal pins are fully seated. A loose crimp can cause intermittent connection. Apply firm, even pressure.
Secure the paracord: Thread the paracord over the connector and adapter. Use a heat gun or lighter to shrink the paracord ends gently, creating a clean finish. Hold the heat source 2-3 inches away to avoid melting the paracord or damaging the connector.
Test the cable: Plug the cable into your mouse and computer. Move the mouse in all directions to check for signal loss or loose connections. If the mouse doesn't respond, re-check the crimp and pin seating before re-testing.

Product facts

Lethal Cable - DIY (JST 2.0) [RUBBER ADAPTER IN BAG]: Length: 1.7m (from connector to connector). Thinner, more flexible, and lighter than standard paracord cables. The reduced weight and flexibility mean less cable drag during gameplay, making mouse movements feel more direct and responsive.
Lethal Cable - DIY (JST 2.0) [RUBBER ADAPTER IN BAG]