Ethernet Cable: A Practical Selection Guide
Quick answer / TL;DR: Short answer: choose the category by speed and distance (Cat5e for 1G, Cat6 for 10G to 55 m, Cat6A for 10G to 100 m), the shielding by environment, and the jacket by the space it runs through. Solid conductor for permanent links, stranded for patch cords, and always test the finished link.
One category, three axes: shielding, conductor and jacket create the SKU.Ethernet cable is specified by category, shielding and jacket. Those three attributes determine speed, distance and where the cable may legally be installed.
Everything else, including colour and branding, is cosmetic.
The Three Attributes
| Attribute | Options | Decides |
|---|
| Category | Cat5e to Cat8 | Speed and distance |
| Shielding | U/UTP, F/UTP, S/FTP | Noise immunity |
| Jacket | Riser, plenum, outdoor, LSZH | Where it may run |
Getting the jacket wrong fails inspection even when the link tests perfectly.
Conductor and Construction
- Solid copper for horizontal runs
- Stranded copper for cords
- Copper, not copper-clad aluminium
- 23 AWG typical for Cat6 and above
- Separator present on Cat6 and Cat6A
The CCA warning is worth repeating: it looks identical, costs less, and carries about 60 percent of the conductivity.
Real-World Applications
A home with 1G service uses Cat5e or Cat6 for runs under 30 m. An office planning 10G uses Cat6A and certifies every link. An outdoor camera run needs flooded outdoor cable, not indoor cable in conduit.
Standards and Verification
| Reference | Relevance |
|---|
| TIA-568.2-D | Categories |
| ISO/IEC 11801 | Classes |
| IEEE 802.3 | PHYs |
Installed performance is not provided in the knowledge base. Certify the link.
References
- TIA-568.2-D, Balanced Twisted-Pair Cabling
- ISO/IEC 11801-1, Generic cabling
- IEEE 802.3, Ethernet
Practical Notes
Keep the jacket print visible in a photograph at installation. It is the record that survives the project.
Related reading: lan cable — blogs/news/lan-cable
Related reading: cat6 cable — blogs/news/cat6-cable
Frequently Asked Questions
Is Cat6 enough for 10G?
Only to 55 m.
Does shielding help at home?
Rarely.
Solid or stranded?
Solid for links, stranded for cords.
How long can it run?
100 m channel.
Sourcing cables for a project, a store, or a private-label line? Contact our B2B sales team for specifications, certification evidence, and volume terms – FOB and CIF options available. Request a quote or sample.
