Cat6 vs Fibre Optic Cable: Which Do You Need?
Quick answer
For almost every Auckland home and small office, Cat6 copper cabling is the right choice — it handles 1 Gbps easily, up to 10 Gbps over short runs, and costs far less to install. Fibre optic cable is the right choice when you need to go further than 100 metres, connect separate buildings, or run multi-gigabit speeds reliably over distance. Most properties use Cat6 throughout and only add fibre for the specific runs that need it.
"Cat6 or fibre?" is one of the most common questions we get in Auckland — and the honest answer is that they're not really competitors. They solve different problems. Copper (Cat6) is cheaper, easier to terminate, and powers devices over the same cable (PoE). Fibre carries far more data over far greater distances but costs more and can't deliver power. Here's how to choose.
Cat6 vs fibre optic — side by side
| Cat6 (copper) | Fibre optic | |
|---|---|---|
| Typical speed | 1 Gbps standard, up to 10 Gbps under 55m | 10 Gbps+ easily, scales to much higher |
| Max distance | 100 m per run | Hundreds of metres to kilometres |
| Powers devices (PoE)? | Yes — one cable for data + power | No — needs separate power |
| Install cost | Lower — easier to run and terminate | Higher — specialist termination + testing |
| Best for | Homes, offices, most outlets, cameras, WiFi APs | Building-to-building, long runs, network backbones |
When to choose Cat6
Choose Cat6 for the vast majority of indoor cabling — wall outlets, security cameras, WiFi access points, desks, and TVs. It's cheaper, supports Power over Ethernet (so one cable runs a camera or access point), and 1 Gbps is plenty for everyday use. For a typical Auckland home or small office, a full Cat6 install is the standard and sensible choice. See our data cabling service for what a Cat6 install includes.
When to choose fibre
Choose fibre when distance or bandwidth beats copper's limits: connecting two buildings on one site, runs longer than 100 metres, a backbone between server rooms, or a business future-proofing for multi-gigabit speeds. Fibre is immune to electrical interference, which also makes it ideal in industrial environments. See our fibre optic installation service.
Most sites use both
In practice the best setup is usually a fibre backbone with Cat6 to the devices. Fibre carries data between buildings or floors; Cat6 distributes it to each outlet, camera, and access point. You get fibre's distance and speed where it matters, and copper's low cost and PoE everywhere else. We design and install both as one job.
Not sure which your property needs?
Get a free quote →Frequently asked questions
What's the difference between Cat6 and fibre optic cable?
Is fibre optic cable faster than Cat6?
Can I use a fibre optic ethernet cable instead of Cat6?
Do I need fibre for my home?
Which is cheaper to install, Cat6 or fibre?
For the full picture on copper cabling see our data cabling in Auckland overview, or fibre optic installation for fibre. Doing a new build or renovation? It's far cheaper to run both at first-fix than to retrofit later.
Cabling For U — Auckland data, fibre, and security cabling since 2018. Fluke-tested, certified installs. Last reviewed May 2026.