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RJ45 Ethernet Cable

13/11/2025
by Rick Coleman
RJ45 Ethernet Cable

G'day! You're in the middle of a grand final stream, it hits the last two minutes, and... buffering. Or you're on a vital Zoom call, and your face freezes. It's a fair dinkum nightmare, and it's almost always that bloody Wi-Fi playing up.

For a rock-solid, reliable connection, you just can't beat a hardwired solution. That's where the RJ45 Ethernet cable comes in. It's the unsung hero of a fast, lag-free Aussie internet connection.

What is an RJ45 Ethernet Cable, Exactly?

This is where the lingo gets a bit mixed up, so let's clear it up.

  • The Cable: This is the long bit, usually a 'Category 6' (Cat6) or 'Category 5e' (Cat5e) cable, which has 8 individual wires inside (in 4 twisted pairs).
  • The RJ45: This is the plug (or connector) on the end. It's that little clear plastic clip with 8 tiny pins that clicks into your modem.

But let's be honest, everyone in Australia just calls the whole thing an RJ45 Ethernet cable, and we all know what we mean. Its one and only job is to carry high-speed digital data from your modem or router straight into your device.

Don't confuse it with your grandad's phone cable! A proper RJ45 Ethernet cable has that wide 8-pin plug. The old-school telephone plug (an RJ11) is much skinnier and only has 4 or 6 pins. They're not interchangeable.

Why Bother? Isn't Wi-Fi Good Enough?

Wi-Fi is ripper for wandering around the house with your phone or laptop. No doubt about it. But for your high-demand, stationary gear (like your smart TV, gaming console, or home office PC), Wi-Fi can be a proper nightmare. It can be flaky, slow, and get interference from your neighbour's network or even the bloody microwave!

A hardwired RJ45 Ethernet cable gives you a direct, stable, physical connection. This means:

  • Faster Speeds: You'll almost always get a faster, more consistent speed than on Wi-Fi.
  • Lower Latency (Ping): This is the big one for gamers. A wired connection gives you a much lower ping for a lag-free experience.
  • Rock-Solid Reliability: No more random dropouts in the middle of a 4K movie or a massive Zoom call. You beauty!

The Quick Guide: Cat5e vs. Cat6

When you buy an RJ45 Ethernet cable, you'll see "Cat5e" or "Cat6" on the packet.

  • Cat5e: This is the older standard. It's fine for most basic Aussie NBN plans.
  • Cat6: This is the new, modern standard. It's a bit thicker, has better internal shielding (to stop interference), and can handle much faster speeds (up to 10 Gigabits over shorter runs). For any new install, you'd be a galah not to use Cat6. It's what any pro would recommend.

The CRITICAL Safety & Compliance Warning: DIY vs. Pro

Righto, this is the most important part, so listen up.

  • DIY: Buying a pre-made RJ45 Ethernet cable (called a "patch lead") from a shop to run outside your walls from the socket to your PC? Go for your life, mate. Too easy.
  • PRO ONLY: Want a new data point in your study or media room? This involves running a data cable inside your walls, floor, or ceiling and terminating it at a wall plate.

In Australia, this is strictly not a DIY job. Any fixed data, communications, or telephone cabling must be installed by a licensed cabler (registered with ACMA).

Why? It's the law, mate. A dodgy data install (especially with cheap parts from a non-specialist supplier) can create interference (messing up your and your neighbour's NBN). Worse, if it's run too close to 240V power wiring without proper separation, it can become a serious electrical hazard. Don't be a galah.

A Professional Job Needs Professional Gear

A licensed cabler or licensed electrician knows that a rock-solid, high-speed network relies on high-quality, compliant components from end to end. They can't risk a job on a cheap, dodgy cable that will fail in a year. That's why they source their gear from a trusted electrical wholesaler.

As one of Australia's most comprehensive electrical wholesaler and supplier networks, Schnap Electric Products stocks the lot for the professional installer. They've got a massive range of high-quality, professional-grade Cat6 RJ45 Ethernet cable, connectors ('jacks' and 'plugs'), wall plates, and all the specialist crimping and testing tools that a qualified professional needs to do the job right, compliant, and ready for high-speed Aussie internet. For a connection that won't let you down, the pros start with quality gear from a supplier like Schnap Electric.