When it comes to networking, one of the most common questions we get at ATTAC-SA is:
“Should I choose copper or fibre cables?”
Both have their strengths—and knowing the difference can help you make the right choice for your business or project.
Let’s break it down.
What Is Copper Cabling?
Copper cables (like Cat5e, Cat6, and Cat6a) use electrical signals to transmit data. They’ve been the backbone of networking for decades and remain widely used in businesses of all sizes.
Pros of Copper:
- Cost-effective
- Easier to install and terminate
- Perfect for shorter distances
- Supports Power over Ethernet (PoE) – great for powering cameras, phones, and access points
Limitations:
- Signal loss over long distances
- More prone to electromagnetic interference (EMI)
- Limited bandwidth compared to fibre
Best for: Small to medium offices, PoE applications, general business networking
What Is Fibre Optic Cabling?
Fibre optic cables use light signals (not electricity) to transmit data. This allows for higher speeds, longer distances, and minimal interference.
Pros of Fibre:
- Ultra-high speeds and bandwidth
- Transmits data over much longer distances
- Immune to EMI
- Ideal for backbone networks and data centres
Limitations:
- More expensive than copper
- Specialised tools and skills required for installation
- Not ideal for PoE (can’t transmit power)
Best for: Large-scale infrastructure, data centres, long-distance communication, high-traffic networks
Quick Comparison:
| Feature | Copper | Fibre |
|---|---|---|
| Transmission | Electrical signals | Light signals |
| Speed | Up to 10 Gbps (Cat6/Cat6a) | 10 Gbps+ with huge bandwidth |
| Distance | Up to 100m | Several kilometers |
| EMI Resistance | Moderate | High (immune) |
| Cost | Lower | Higher upfront, but scalable |
| Installation | Simple | Requires expertise |
| Power (PoE) | Supported | Not supported |
Which One Should You Choose?
There’s no one-size-fits-all answer. It depends on:
- Your budget
- Distance and speed requirements
- Future scalability
- The environment (e.g. interference-heavy or secure zones)
Many modern networks use a combination: fibre for the backbone and copper for end-user connections.
Need Help Deciding? Talk to ATTAC-SA
At ATTAC-SA, we supply both high-quality fibre and copper cabling, along with all the accessories you need for a complete network installation.
Plus:
- 30-Year Warranty on copper products
- Expert guidance from our team
- Fast, reliable delivery across South Africa and beyond
Visit us at Unit 28, Graphite Industrial Park, Randburg, Johannesburg
Or contact us for a free consultation.
