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Why Choosing the Right Ethernet Cable Matters
"Best ethernet cable" isn't really a single product — it depends entirely on what you're doing with it. Someone connecting a router to a laptop needs something completely different from someone wiring a whole house or running a cable across the garden to an office. Buy the wrong type and you'll either overpay for performance you'll never use, or end up with a cable that degrades, trips people up, or fails outdoors within a year.
This guide covers the full range available from kenable, organised by real-world use case, so you can match the cable to the job rather than guessing.
Factors to Consider
Category (Cat6, Cat6A, Cat8.1)
The category number tells you the maximum speed and bandwidth the cable is rated for:
- Cat6 — supports Gigabit Ethernet (1Gbps) at full length, and 10Gbps over shorter runs (up to ~55m). Perfectly adequate for most homes and offices.
- Cat6A — supports 10Gbps at the full 100m distance, with better resistance to interference (crosstalk). Worth it for NAS setups, 10G switches, or future-proofing a commercial install.
- Cat8.1 — rated up to 40Gbps, but only over very short distances (max 30m, and realistically much less). This is data-centre and switch-to-switch territory — massive overkill for a home internet connection, which will never exceed the speed of your broadband regardless of cable category.
Patch Lead vs Installation Cable
This is the distinction most buyers miss. A patch lead is a finished cable with connectors already fitted on both ends — plug and play, ideal for connecting a router, switch, PC, or games console. An installation cable (sold on a reel, without connectors) is designed to be run inside walls, under floors, or through conduit, then terminated on-site with wall plates and keystone jacks. Don't try to use bulk reel cable as a flexible patch lead — the solid copper cores are designed to stay still once installed, and will fatigue and snap if flexed repeatedly.
Copper vs CCA (Copper-Clad Aluminium)
Always check that a cable is full copper conductor, not CCA. CCA cables are cheaper but have higher resistance, carry less power for Power over Ethernet (PoE) devices like cameras and access points, and are more prone to signal loss and connector failure. Every cable in this guide uses full copper conductors.
Shielded (S/STP, S/FTP) vs Unshielded (UTP)
Unshielded (UTP) cable is fine for typical home and office runs away from electrical interference. Shielded cable (S/STP or S/FTP) adds a foil or braided screen around the conductors, which helps in environments with nearby power cables, fluorescent lighting, industrial equipment, or where you're chasing maximum reliability at 10Gbps.
Length
Buy the length you actually need, plus a small margin for routing around furniture or skirting — excess cable creates trip hazards and signal loop clutter. Most cables listed here are also available in other lengths and pack sizes on the kenable site if the ones below don't quite match your run.
Top Picks by Use Case
Best for Most People: Short Desk/Router Patch Lead
SLIM Cat6 Full Copper RJ45 Ethernet Network Patch Cable 2m Black
£1.78Available in 6 lengths and 4 colours from £1.22 — See all variations
A slim-profile, full-copper Cat6 patch lead — ideal for connecting a router to a PC, games console, or switch under a desk without a bulky cable getting in the way. Supports Gigabit speeds easily. Also available in other lengths.
View ProductThis is the cable most people searching for "best ethernet cable" actually need: a short, reliable, full-copper Gigabit patch lead at a low price.
Best for Under Carpets and Doors: Flat Cat6
FLAT CAT6 Ethernet LAN Patch Cable Low Profile GIGABIT RJ45 5m BLACK
£2.42Available in 14 lengths and 5 colours from £0.70 — See all variations
The flat, low-profile design sits neatly under carpets, rugs, and door edges, making it a practical choice for extending a connection across a room without tripping hazards or having to lift flooring. Rated for full Gigabit speeds. Also available in other lengths.
View ProductBest for 10Gbps, NAS Setups & Interference-Prone Areas: Shielded Cat6A
Cat6A SSTP Snagless Shielded RJ45 Network Ethernet 10 Gigabit Cable 5m Black
£4.69Available in 11 lengths and 2 colours from £0.86 — See all variations
Shielded (S/STP) construction protects the signal from nearby electrical interference, while Cat6A specification supports full 10 Gigabit speeds at this length. A good match for NAS drives, home labs, or connecting a switch near power cabling. Also available in other lengths.
View ProductFor 40Gbps Data-Centre Use: Cat8.1 (Overkill for Home Internet)
Mesh Jacket CAT8.1 Ethernet Cable RJ45 SFTP Shielded 2000MHz 40Gbps 2m Black
£3.34Available in 6 options from £1.88 — See all variations
Fully shielded and rated to 2000MHz for 40Gbps, this is a switch-to-switch or server-room cable. It will happily do the job of a normal patch lead too, but be honest with yourself — if you're just connecting a router to a PC for broadband, you won't notice any difference over Cat6.
View ProductBest for Garden Offices & Outbuildings: Pre-Terminated Outdoor Cat6
Outdoor External CAT6 COPPER UTP Network Cable GigaBit Ethernet Patch Lead 20m
£15.41Available in 11 lengths from £0.98 — See all variations
Pre-terminated with connectors already fitted, so there's no crimping required — just run it from your house to a garden office, shed, or outbuilding and plug it straight in. UV and weather-resistant outer jacket, full copper conductors, and Gigabit-rated. Also available in other lengths.
View ProductBest for Wiring a House: Indoor Cat6 Bulk Reel
Indoor CAT6 UTP 23AWG COPPER Ethernet PVC Network Cable Reel BOX 305m Grey
£152.44Available in 3 lengths from £27.49 — See all variations
Our best-selling reel. Supplied in a pull-box for easy feeding through walls, ceilings, and conduit, with 23AWG solid full-copper conductors — the standard for wiring multiple network points around a home or small office. You'll need RJ45 connectors, a crimp tool, and ideally wall plates to terminate each end.
View ProductBest for Commercial & 10G Installs: Cat6A S/FTP LSZH Reel
Cat6A S/FTP COPPER Low Smoke LSZH 10 Gigabit Network Cable Reel 305m
£243.86Available in 4 options from £44.78 — See all variations
Our top-selling installation cable, built for 10 Gigabit performance over full 100m runs. Fully shielded (S/FTP) copper construction and a Low Smoke Zero Halogen (LSZH) jacket, which is required in many commercial buildings and risers for fire safety compliance. The right choice for office fit-outs, comms rooms, or any 10G structured cabling project.
View ProductComparison Table
| Product | Category | Type | Shielding | Length | Price | Best For |
|---|---|---|---|---|---|---|
| SLIM Cat6 Full Copper Patch Cable | Cat6 | Patch lead | Unshielded (UTP) | 2m | £1.78 | General desk/router use |
| FLAT Cat6 Patch Cable | Cat6 | Patch lead | Unshielded (UTP) | 5m | £2.42 | Under carpets/doors |
| Cat6A SSTP Shielded Patch Cable | Cat6A | Patch lead | Shielded (S/STP) | 5m | £3.29 | 10Gbps, NAS, interference |
| Cat8.1 Mesh Jacket Patch Cable | Cat8.1 | Patch lead | Shielded (S/FTP) | 2m | £1.67 | 40Gbps switch/server use |
| Outdoor External Cat6 Cable | Cat6 | Pre-terminated patch lead | Unshielded (UTP) | 20m | £15.41 | Garden office/outbuilding runs |
| Indoor Cat6 UTP Reel | Cat6 | Installation cable (bulk) | Unshielded (UTP) | 305m | £152.44 | Wiring a house |
| Cat6A S/FTP LSZH Reel | Cat6A | Installation cable (bulk) | Shielded (S/FTP) | 305m | £243.86 | Commercial/10G installs |
Installation and Setup Tips
Terminating bulk reel cable? You'll need RJ45 connectors (or keystone jacks and wall plates for a neater finish), a crimp tool, and a cable tester to check every run before you plug anything in. Label both ends of each cable as you go — it saves hours later.
- Keep runs away from mains cabling where possible, or use shielded cable if you can't avoid it.
- When running cable outdoors, always use a cable rated for outdoor/external use — indoor cable jackets aren't designed to survive UV and moisture.
- Leave a service loop (a little slack) at both ends of any installed run in case you need to re-terminate later.
- For PoE devices such as cameras or access points, always confirm the cable is full copper — CCA cable struggles to carry power reliably over distance.
Common Mistakes to Avoid
- Buying Cat8.1 for home broadband — your internet speed is capped by your ISP connection, not the Ethernet cable. Cat6 or Cat6A is more than enough for almost every home setup.
- Using patch cable for wall installations — stranded patch cable isn't designed to be fixed in place and can suffer signal issues over long runs; use solid-core installation cable instead.
- Choosing CCA over copper to save a few pounds — it degrades faster, carries less PoE power, and can void warranties on connected equipment.
- Ignoring the environment — using standard indoor cable outdoors, or unshielded cable next to heavy electrical equipment, will cause reliability problems.
Frequently Asked Questions
Do I need Cat6A or Cat8.1 for gaming or streaming?
No. Standard Cat6, such as the SLIM Cat6 patch lead, comfortably handles Gigabit speeds, which is far more than most home internet connections and gaming/streaming needs require. Cat6A and Cat8.1 are aimed at 10Gbps and 40Gbps networking, NAS storage, and commercial installs.
What's the difference between a patch lead and installation cable?
A patch lead has connectors already fitted and is designed to be flexed and moved — ideal for connecting devices directly. Installation cable is sold on a reel without connectors and is intended to be run through walls or conduit, then terminated with plugs or wall plates once fitted in place.
Can I use outdoor Ethernet cable indoors, or vice versa?
Outdoor cable can generally be used indoors, but standard indoor cable should not be used outside — it lacks the UV and weatherproof jacket needed to survive exposure to sun and moisture, and will degrade over time.
Why does copper vs CCA matter?
Full copper conductors carry data and power more reliably over distance than copper-clad aluminium (CCA). This matters especially for Power over Ethernet devices like cameras and access points, and for longer cable runs where signal loss becomes more noticeable. All the cables in this guide use full copper conductors.