Copper cabling is still the backbone of most office, campus and building networks. When planning a new installation, the choice usually comes down to Cat6 or Cat6A. Both look similar, but they perform differently, especially as networks move beyond 1 Gbps.
The key differences
| Cat6 | Cat6A | |
|---|---|---|
| Bandwidth | 250 MHz | 500 MHz |
| 1 Gbps | Up to 100 m | Up to 100 m |
| 10 Gbps | Up to about 55 m | Up to 100 m |
| Cable diameter | Smaller | Larger |
| Cost | Lower | Higher |
Speed and distance
Both categories support Gigabit Ethernet over the standard 100 m channel (90 m of permanent link plus up to 10 m of patch cords). The difference appears at 10 Gbps: Cat6 supports 10GBASE-T only over shorter distances, typically up to 55 m, while Cat6A is designed to deliver 10 Gbps over the full 100 m.
Wi-Fi and PoE
Modern access points (Wi-Fi 6, 6E and 7) increasingly use 2.5G, 5G or 10G uplinks and are powered over the same cable with PoE. Higher PoE power levels, such as IEEE 802.3bt, generate more heat inside cable bundles. Cat6A’s larger conductors and construction handle heat better, which makes it a strong choice for installations with many PoE devices, such as access points, cameras and IoT sensors.
Size and installation
Cat6A cable is thicker and less flexible than Cat6. It takes up more space in trays and conduits and requires care with bend radius. When planning a Cat6A installation, size your pathways accordingly and use patch panels and cable managers designed to keep cables organized.
Cost and lifespan
Cat6 is more affordable and remains a great option for desktops, phones and general networks running at 1 Gbps. Cat6A costs more upfront, but structured cabling usually stays in place for 10 to 15 years. If you expect to support 10G devices or high-power PoE during that time, Cat6A is often the more economical choice in the long run.
Don’t forget the components
A channel is only as good as its weakest link. To get the performance you pay for, every component must match the cable category: keystone jacks, patch panels, faceplates, plugs and patch cords. For outdoor runs, choose cable with a UV-resistant PE jacket.
Our recommendation
- Choose Cat6 for general office networks, workstations and devices that run at 1 Gbps.
- Choose Cat6A for Wi-Fi access points, high-power PoE, 10G links and new buildings that need to last.
Get the right cabling for your project
Explore our Cat6 and Cat6A cable rolls and the full copper portfolio, or request a quote for your installation.