DIRECT ANSWER
The selection rule
Choose Cat6A for a standards-based 10GBASE-T channel up to 100 m. Cat6 supports 1GBASE-T to 100 m and may support 10GBASE-T over shorter channels, commonly up to 55 m only when installation conditions and alien-crosstalk performance permit. Confirm the applicable standard edition and the complete channel before ordering.
Cat6 and Cat6A: the procurement differences that matter
The figures below are selection-level references for a complete balanced copper channel. The quoted cable, connecting hardware, patch cords, installation and test limit must all match the intended channel.
| Selection point | Cat6 | Cat6A |
|---|---|---|
| Specified frequency | Up to 250 MHz | Up to 500 MHz |
| 1GBASE-T channel | Up to 100 m | Up to 100 m |
| 10GBASE-T channel | Shorter reach; commonly up to 55 m when conditions permit | Up to 100 m when the complete channel complies |
| Cable size and pathway | Typically smaller and easier to route | Typically larger; pathway fill and bend radius need review |
| Typical decision driver | 1 Gb/s access links and cost-sensitive projects | 10 Gb/s design certainty, higher-density upgrades and longer links |
Shielding is a channel decision, not a synonym for Cat6A
Cat6 and Cat6A can be offered in unshielded or screened constructions. A screened cable does not by itself make the installed channel compliant, and Cat6A does not automatically require one shielding format.
- Review electromagnetic interference, pathway separation and grounding or bonding provisions.
- Match cable, jacks, panels and patch cords as one channel design.
- For screened channels, define installation and grounding responsibility before quotation.
What to include in a Cat6 or Cat6A RFQ
State the application, maximum link length, cable construction, jacket requirement, destination, test requirement and quantities. If 10GBASE-T is required, say so explicitly rather than requesting only a category name.
| Field | Example | Why it matters |
|---|---|---|
| Target application | 1GBASE-T or 10GBASE-T | Controls category and channel selection |
| Channel length | 90 m permanent link / 100 m channel | Controls standards-based reach |
| Construction | U/UTP, F/UTP or S/FTP | Controls pathway and grounding review |
| Jacket and destination | LSZH, destination market | Controls material and document review |
| Evidence | Component, permanent-link or channel test | Keeps test scope aligned with the order |