Cat6 ethernet cable for data centre

For a data centre, choose the right lengths, suitable shielding, and the right outer jacket. You’ll find options like short 5 m white cables for rack connections, mid-length runs, and long rolls such as 305 m for extended links or future stock. Some variants support Power over Ethernet (PoE), allowing you to power devices through the cable without using a separate power supply. UTP cable works well when the environment is relatively clean with fewer interference sources, while double-shielded cables help reduce interference and crosstalk over longer distances.

Conductor design and shielding are the most complex aspects to understand. In our selection, some cables use 23–24 AWG conductors with dual shielding (AL foil + CCA braid) to minimise crosstalk and interference, while others are simple UTP cables. This difference directly affects performance across varying distances and in busy environments. Knowing when to prioritise stronger shielding versus an unshielded model is key to ensuring reliable transmission across racks or between rooms.

For a data centre technician, long rolls and enhanced shielding enable durable connections between racks and critical equipment. For a small office or regular installs, short options (5 to 20 m) and unshielded cables are often enough, providing easier installation and solid Cat6 performance. In this range, you’ll find different lengths and configurations—from short patch leads to long cables—so you can choose based on your needs.

Make sure you use Cat6-compatible RJ45 connectors and follow proper twisting and bending standards to avoid performance loss. Prefer cables with RJ-45 terminations and suitable plugs, and avoid excessive twisting, which increases crosstalk. Choose the cable jacket type and shielding based on the environment: shielded versions are better for industrial settings or areas near heavy interference, while unshielded versions are sufficient for clean office environments.

Solid copper cables offer better conductivity and durability and are ideal for high-speed performance over long distances. CCA cables are more cost-effective but have slightly higher resistance, which can affect performance on critical or very long links. In our selection, some models use 23 AWG CCA conductors for a good cost/performance balance, making them suitable for standard connections and moderate-budget installs, but less ideal for demanding environments.

For in-building runs and rack patching, short lengths like 5 to 20 m are usually enough and make organisation easier. For links between rooms or in data centres, choose long rolls like 305 m to reduce terminations and improve reliability. Each length is intended for a specific use: 5 m for patching, 20 m for medium distances, and 305 m for storage runs and external applications. Selecting the right length helps optimise costs and ensures long-lasting Cat6 performance.