Key takeaways
- For most homes, Cat6 is the sweet spot: it handles gigabit easily, supports 10 Gigabit on shorter runs, and costs only a little more than Cat5e.
- The cable category sets the speed ceiling, but your real speed is limited by your internet plan and your devices. A faster cable will not make a slow internet plan faster.
- Skip Cat7 (it uses oddball connectors most gear does not support) and save Cat8 for short, high-speed runs between a fast router and a server or NAS.
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Cat5e vs Cat6 vs Cat6a vs Cat7 vs Cat8: A Simple Guide
Ethernet cables all look nearly identical, but the category printed on the jacket (Cat5e, Cat6, and so on) tells you how fast and how far the cable can carry data. The good news: you do not need to memorize specifications. This guide explains the difference in plain English and helps you pick the right cable in a couple of minutes.
The quick answer
Most people should buy Cat6. It is cheap, fast, and works with everything. Choose Cat6a if you want to future-proof a long run for 10 Gigabit speeds. Cat5e is fine if your internet plan is under 1 Gigabit and you already have it. Cat7 is best avoided, and Cat8 only makes sense for short, very high-speed connections.
Ethernet cable comparison at a glance
| Category | Max Speed | Max Distance at Top Speed | Bandwidth | Best For |
|---|---|---|---|---|
| Cat5e | 1 Gbps | 100 m (328 ft) | 100 MHz | Everyday home internet under 1 Gbps |
| Cat6 | 10 Gbps | 55 m (180 ft); 1 Gbps to 100 m | 250 MHz | The best all-around choice for most homes |
| Cat6a | 10 Gbps | 100 m (328 ft) | 500 MHz | Future-proofing long 10 Gigabit runs |
| Cat7 | 10 Gbps | 100 m (328 ft) | 600 MHz | Rarely worth it; uses non-standard connectors |
| Cat8 | 25 to 40 Gbps | 30 m (98 ft) | 2000 MHz | Short runs to a fast server, NAS, or switch |
Cat5e: the budget basic
Cat5e (the "e" means enhanced) handles up to 1 Gigabit per second over the full 100 meters. Since most home internet plans are under 1 Gigabit, Cat5e is genuinely enough for a lot of people. It is thin, flexible, and the cheapest option. If you already have Cat5e in the wall and your plan is under 1 Gbps, there is no urgent reason to replace it.
Cat6: the smart default
Cat6 is the cable we recommend for most homes. It comfortably handles gigabit internet and can reach 10 Gigabit speeds on shorter runs (up to about 55 meters). It costs only slightly more than Cat5e, works with all your existing equipment, and gives you headroom if you upgrade your plan later. When in doubt, buy Cat6.
Cat6a: 10 Gigabit, future-proofed
Cat6a (augmented) delivers full 10 Gigabit speeds across the entire 100-meter distance, where regular Cat6 fades after about 55 meters. It is thicker and stiffer because of extra shielding, which makes it a bit harder to route around tight corners. Choose Cat6a if you are wiring a long run, running cable through walls, or planning for multi-gigabit internet in the next several years.
Cat7: usually skip it
On paper, Cat7 looks like an upgrade, but it was never officially recognized by the main cabling standards body, and it was designed to use special connectors (GG45 or TERA) that almost no home equipment supports. Many cables sold online as "Cat7" actually use a normal connector and behave like Cat6a anyway. For nearly everyone, Cat6a or Cat8 is the better, better-supported choice.
Cat8: overkill for most, perfect for a few
Cat8 is the fastest option, reaching 25 to 40 Gigabit per second, but only over short distances of about 30 meters. It was built for data centers and server rooms. At home, it only makes sense for a short, high-speed link, for example connecting a fast router to a network switch, a NAS, or a gaming PC with multi-gigabit networking. For typical internet use, it is more than you need.
How to choose the right cable (without the jargon)
Three simple questions will get you to the right answer:
- How fast is your internet plan? If it is 1 Gigabit or less, Cat5e or Cat6 is plenty. If it is faster, look at Cat6a.
- How long is the run? For short cables between your modem and router, almost any modern category works. For long runs through walls or across the house, Cat6 or Cat6a is safest.
- Are you future-proofing? If you are running cable inside walls (where replacing it is a hassle), spend a little more on Cat6 or Cat6a now.
One more tip for gamers and streamers: a wired connection beats Wi-Fi for stability and low lag. If you have been chasing lower ping, plugging in is the single biggest upgrade. See our guide on the best DNS settings for gaming for more on going wired.
What matters beyond the category
A few practical details can matter as much as the category number:
- Solid vs stranded: Stranded cables are flexible and best for short patch cables you move around. Solid cables are best for permanent in-wall runs.
- Shielding: Shielded cables (labeled STP, FTP, or S/FTP) resist interference and are useful near power lines or in noisy electrical environments. Unshielded (UTP) is fine for most homes.
- In-wall rating: If a cable runs inside walls, look for a CMR (riser) or CMP (plenum) rating for fire safety and code compliance.
- Length: Buy a little longer than you think you need, but avoid huge excess coils, which can clutter and tangle.
The Best Ethernet Cables to Buy
Here are reliable picks for common situations. Prices change often, so check the current price before buying.
Best overall for most homes: Cable Matters Snagless Cat6
A dependable, affordable Cat6 patch cable with a snagless clip that will not catch when you route it. The right choice for connecting routers, computers, consoles, and smart TVs in most households.
Best budget option: Amazon Basics Cat5e
If you are on a plan under 1 Gigabit and want the lowest cost, this Cat5e cable does the job for everyday browsing, streaming, and video calls.
Best flat cable for along walls and baseboards: Jadaol Flat Cat6
A thin, flat Cat6 cable that lies flush against walls and tucks under rugs or trim, ideal when you want to hide the cable without drilling.
Best for 10 Gigabit future-proofing: Cable Matters Cat6a Shielded
Shielded Cat6a that supports full 10 Gigabit speeds over long distances. A smart pick for long runs or homes preparing for multi-gigabit internet.
Best short patch cables (modem to router): Mediabridge Cat6 (1 to 3 ft)
Short, tidy cables for connecting your modem to your router or your router to a switch without extra slack cluttering the area.
Best for outdoor or direct burial: Cable Matters Outdoor Cat6
A weather-resistant, direct-burial-rated Cat6 cable for running networking to a detached garage, shed, or outdoor camera.
Best bulk cable for in-wall runs: Cable Matters Bulk Cat6 (CMR Riser-Rated)
A spool of solid, riser-rated Cat6 for wiring multiple rooms or running cable through walls during a home network project.
Best Cat8 for short high-speed runs: DbillionDa Cat8
A heavy-duty, shielded Cat8 cable for short, very fast connections between a multi-gigabit router and a server, NAS, or high-end PC.
Frequently Asked Questions
What Ethernet cable do I need for home internet?
For most homes, Cat6 is the best choice. It supports gigabit internet, handles 10 Gigabit on shorter runs, and costs little more than older Cat5e. If your plan is under 1 Gigabit, Cat5e also works fine.
Is Cat6 better than Cat5e for gaming?
Both Cat5e and Cat6 deliver low latency for online gaming, and either is far better than Wi-Fi for a stable connection. Cat6 gives you more speed headroom and is barely more expensive, so it is the better long-term pick.
Does a better Ethernet cable increase internet speed?
Only up to a point. A cable can carry data only as fast as the cable category allows, but your actual speed is limited by your internet plan and your equipment. If your cable already supports your plan speed, a higher category will not make your internet faster.
Can I use Cat6 or Cat6a with my existing router?
Yes. All standard Ethernet cables use the same RJ45 connector and are backward compatible, so newer cables plug into older routers, modems, and computers without any adapters.
How long can an Ethernet cable be before it slows down?
The standard maximum length for Cat5e, Cat6, and Cat6a is 100 meters (about 328 feet). Cat6 hits its top 10 Gigabit speed only up to about 55 meters, while Cat6a maintains 10 Gigabit across the full 100 meters. Cat8 is limited to roughly 30 meters.
Is Cat7 worth buying?
For most people, no. Cat7 was never officially recognized by the main cabling standard and was designed for connectors that home equipment does not use. Cat6a offers similar speed with full compatibility, and Cat8 covers ultra-high-speed needs.
What is the difference between shielded and unshielded Ethernet cable?
Shielded cables have extra foil or braiding to block electrical interference, which helps near power lines or in electrically noisy spaces. Unshielded cables are thinner, more flexible, and perfectly fine for typical home use.
