100 Ft Cat6a Cable: Long and Still Rated
Quick answer / TL;DR: Short answer: a 100 ft Cat6a run leaves about 70 m of channel margin, so 10G is comfortable in any supported configuration. Buy shielded Cat6a with 23 AWG conductors, keep the bend radius generous during the pull, terminate on Cat6a jacks and panels, and test the channel – Cat6a installed without bonding often tests below its category.
A 100 ft Cat6a cable covers about 30 metres – a third of the channel – and is the length where Cat6a's advantage is clearest: 10G with margin to spare, where Cat6 would be counting metres. It is also the length where its stiffness becomes an installation problem.
This is the 100 ft Cat6a guide: the margin arithmetic, the handling penalties, and the termination and test that decide whether the channel holds Class EA.
The Margin Arithmetic
| The element | The figure | The note |
|---|---|---|
| Cable | 30 m | A third of the channel |
| Remaining | 70 m | Comfortable at 10G |
| Category effect | None at this length | Rate is the driver |
| Joints | None | No reason to add |
At this length the category is doing exactly what it was bought for: 10G without distance arithmetic.
The Handling Penalty
- Stiffness: Cat6a resists tight bends and short radius corners
- Diameter: less room in trunking and behind skirting
- Termination: shielded jacks take longer per port
- Test: Class EA needs a proper tester, not a continuity light
The penalties are installation costs, which is why the cable price alone never predicts the project cost.
Termination and Test
| The step | The requirement |
|---|---|
| Jack | Cat6a rated, shielded if the cable is |
| Bonding | Drain to shell, panel to rack |
| Bend radius | Respected at both ends |
| Test | Permanent link, Class EA |
Standards and Verification
| The reference | The relevance |
|---|---|
| TIA-568.2-D | Category 6A requirements |
| ISO/IEC 11801-1 | Class EA |
| IEEE 802.3an | 10GBASE-T |
| Field test | Permanent link test per run |
Per-SKU construction is not provided in the knowledge base. The category figures are standard; confirm the shield and conductor on the print before installation.
Real-World Applications
The annexe link
An annexe 28 m from the main switch: a 100 ft Cat6a run, shielded jacks at both ends, the drain bonded – the channel tested at Class EA and 10G negotiated first time.
Related reading: The specification lines for Cat6a — blogs/news/cat6a-cable-spec
Related reading: The shielded variant of the same run — blogs/news/cat6a-shielded-cable
Frequently Asked Questions
Is 100 ft too long for Cat6a at 10G?
No – 30 m against a 100 m channel leaves ample margin for 10GBASE-T.
Do I need shielded Cat6a for 30 m?
Most Cat6a is shielded; if yours is, bond the drain at both ends.
Can I terminate Cat6a with Cat6 jacks?
It works but caps the channel. Use Cat6a-rated jacks for the rating you paid for.
How should a Cat6a run be tested?
Permanent link test at Class EA with a category-rated tester.
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.