Every camera, access point, phone and register you will ever install depends on the cable behind it, and that cable is the one part of the system you cannot cheaply swap out later. So it is worth five minutes to choose it properly. The short version: Cat6 is plenty for most homes and small offices today, and Cat6A is the better buy anywhere you expect faster equipment, long runs or a lot of powered devices over the next ten years.
In short
- Both run gigabit Ethernet the full 100 meters. The difference shows up at 10 gigabit and with high-power PoE.
- Cat6 carries 10 gigabit only on shorter runs; Cat6A carries it the full 100 meters.
- A bad termination, no testing and no labels hurt you far more than the category on the jacket.
The numbers that actually matter
| Cat6 | Cat6A | |
|---|---|---|
| Rated bandwidth | 250 MHz | 500 MHz |
| Gigabit Ethernet | Full 100 m channel | Full 100 m channel |
| 10 gigabit (10GBASE-T) | Up to 55 m, in good conditions | Full 100 m channel |
| Size and stiffness | Thinner, easier to pull | Thicker and stiffer, needs more room |
The 100-meter figure is the whole channel, not just the run in the wall: roughly 90 meters of solid cable from the patch panel to the wall jack, plus the patch cords at each end. Past that, you need fiber or a switch partway along — no category of copper changes that rule.
And the Cat6 10-gigabit figure is a ceiling, not a promise. It depends on how much the cables around it interfere with each other, and the standards bodies are more cautious about it than the 55-meter number suggests. If you plan to run 10 gigabit, plan for Cat6A.
Power over the cable changes the math
A lot of what we install never touches a wall outlet. Cameras, Wi-Fi access points, desk phones and door readers take their power from the network switch over the same cable (PoE). The newest PoE standard, IEEE 802.3bt, allows up to 90 watts at the switch port, with roughly 71 watts arriving at the device after losses in the cable.
More power means more heat, and heat builds up when dozens of cables are bundled tightly together through a ceiling or a riser. Cat6A's heavier construction handles that better, which is one reason it is the usual choice for high-power PoE in large bundles. For a home with a handful of cameras on short runs, Cat6 is fine.
Where Cat6 is the right call
- Most houses: camera drops, a couple of access points, the TV and the home office.
- Small offices where runs are short and the equipment is gigabit.
- Retrofits in finished homes, where a thinner, more flexible cable is far easier to fish through existing walls.
Where Cat6A pays for itself
- Wi-Fi access points. Current business access points increasingly come with faster-than-gigabit network ports. Cat6A lets the next one run at full speed without opening the ceiling again.
- Long runs that sit close to the 100-meter limit — warehouses, long retail floors, detached buildings fed from the main closet.
- New construction and gut renovations where the walls are open now and will not be again for a decade.
- Big bundles of powered devices, like a camera-heavy commercial building.
Shielded or unshielded?
For almost every home and small business, unshielded (UTP) cable is the right answer. Shielded cable only helps if the shield is grounded correctly end to end; done badly, it can be worse than no shield at all. Save it for places with real electrical noise, like runs alongside heavy machinery, and have it installed by someone who grounds it properly.
The jacket matters to the inspector
Cable is rated for the space it runs through. Air-handling spaces such as many drop ceilings call for plenum-rated cable (marked CMP); vertical runs between floors call for at least riser-rated (CMR). The wrong jacket can fail an inspection and is a real fire-safety issue, so make sure your quote names the rating, not just the category.
What matters more than Cat6 or Cat6A
We see more trouble from workmanship than from the category ever printed on the box:
- Jacks, patch panels and cords that match the cable's category
- Every run tested, with the results kept
- Both ends of every run labeled the same way
- No tight kinks, crushed staples or overtightened ties
- A little slack left at each end for future changes
- A drawing of where every run goes
A Cat6 cable punched down onto old Cat5e jacks performs like Cat5e. A Cat6A run that was never tested is a guess.
How we run cable
Piets Technology Solutions plans, pulls, terminates, tests and labels Cat6, Cat6A and fiber for homes, offices, restaurants and new construction across Long Island, NYC and the Hudson Valley. We recommend the category run by run, not as a blanket upsell, and we plan the cable together with the cameras and access points it is going to feed. You get the labels, the test results and the drawing. Every job is quoted to the site.
Call or text 631-871-5957. Questions? We're here 24/7.
Common questions
Is Cat6A worth it for a house?
Usually only where the walls are open anyway, or for runs to Wi-Fi access points you expect to upgrade. For camera drops and most rooms, Cat6 is plenty.
Should I skip ahead to Cat7 or Cat8?
No. Cat8 is designed for very short links between equipment in data centers, not for running through a building, and Cat7 is not a category the US cabling standards use for this kind of work. Cat6A is the practical top end for homes and offices.
Can I keep my existing Cat5e?
Often, yes. Cat5e carries gigabit Ethernet the full distance when it was installed and terminated well. Test it before you replace it.
Do security cameras need Cat6A?
Typically not. Most cameras need far less than gigabit, and Cat6 handles their power and video easily on normal runs.
Piets Technology Solutions
Low-voltage tech for homes and small businesses — cameras, Wi-Fi, cabling, POS, phones and 24/7 support across Long Island, NYC, the Hudson Valley and the Capital Region. Wi-Fi, Wires, Whatever — Piet Makes It Better