Cat7a Ethernet Cable: Specs, Features, Pros & Cons
A full gigahertz of tested bandwidth is what Category 7a adds to the Category 7 design, and for Ethernet that extra headroom changes nothing. ISO lists it as Class FA, introduced in the same amendment as Class EA, the Category 6a level, and it keeps the Category 7 build, with each pair wrapped in its own foil and a braid around the whole cable.
On the Ethernet speeds people buy equipment for, it delivers ten gigabit over a full-length run and nothing faster, since no quicker Ethernet mode is specified over this class. The headroom was meant for something other than faster Ethernet, which is why the class shows up in broadcast facilities and building-services work and rarely in an ordinary office.
Like Category 7, it has no TIA equivalent and was written around connector types that ordinary equipment does not use, so a patch lead terminated in RJ45 plugs cannot form a compliant channel at this class, whatever the jacket is printed with.
As cable, it is excellently made and heavily shielded, useful where electrical noise is a real problem. In a home or a normal office network, its bandwidth goes unused, because no connected device can take advantage of it, and an RJ45 termination voids the class anyway.
Category 6a reaches the same Ethernet speed over the same distance on connectors that exist on every device. The ISO shielded grades earn their place only in installations built around their own connector ecosystem.
Category strengths
Where the Cat7a Ethernet Cable beats the median
- A much higher bandwidth ?1,000 MHz vs 375 MHz (median)
- A much higher 10 Gigabit reach ?100 m vs 42.5 m (median)
- Has shielded construction ?
Where the Cat7a Ethernet Cable trails the median
- No native RJ45 connector ?
How this VS Score was computed
Score 76: each known spec is measured against the median of all ethernet cables (8 products), then weighted; 50 means level with that median. In classes of six or more, a value beyond the class’s 10th–90th percentile range counts as that limit, so one extreme product cannot set the scale. 75% of the scoreable weight could be used; unknown values, features not applicable to this class and proxies (battery capacity where a rated life exists) add or remove nothing.
| Specification | This product | Cohort median | Score weight | Points moved |
|---|---|---|---|---|
| Bandwidth | 1,000 | 375 | 2.5 | +125.0 |
| 10 Gigabit reach | 100 | 42.5 | 2 | +100.0 |
| 10 Gigabit Ethernet | Yes | 63% of the class have it | 2 | +100.0 |
| Recognition for new installs | Yes | 75% of the class have it | 2 | +100.0 |
| Native RJ45 connector | No | 75% of the class have it | 2 | −96.0 |
| Multi-gig (2.5G / 5G) | Yes | 75% of the class have it | 1.5 | +75.0 |
| Typical shielding | S/FTP (braid over foiled pairs) | U/UTP (unshielded) | 1.5 | +75.0 |
| Shielded construction | Yes | 38% of the class have it | 1 | +50.0 |
| Maximum data rate | 10 | 10 | 3 | +0.0 |
| Reach at top speed | 100 | 100 | 1.5 | +0.0 |
| Maximum PoE power | 90 | 90 | 1.5 | +0.0 |
Not scored: Gigabit Ethernet (standard for the class (88% have it)); 25G / 40G Ethernet (not applicable: only 13% of this class have it); Alien crosstalk limits (unknown: not scored); Conductor material (unknown: not scored); Snagless boots (unknown: not scored); PoE++ (Type 4, 90 W) (standard for the class (88% have it)); Backward compatibility (unknown: not scored).
Editor’s note
Category 7a is the top of the ISO Class F family, and it inherits both the strengths and the fundamental awkwardness of Cat 7. Added by amendment in 2008 as Class FA, it raises tested bandwidth to a full gigahertz, with each pair individually foiled inside an overall braid. That headroom was aimed at carrying several services down one cable at once, which is why it turns up in broadcast and building-services cabling rather than ordinary offices.
Like Cat 7, it is an ISO standard with no TIA equivalent, and like Cat 7 its rating depends on GG45 or TERA connectors. Put an RJ45 on the end, as consumer patch cords do, and the channel certifies to Class EA. The extra bandwidth is real in the cable and unavailable in the link, which is a distinction retail listings rarely make.
Where it does get used, the reasoning is usually about the environment rather than raw speed. Individually shielded pairs handle proximity to power cabling and industrial noise well, and the 1 GHz rating leaves room for cable-television and other analog services to share the same sheath as data. For a data-only network, that headroom translates into no extra Ethernet speed at all, because the fastest thing you can run over it, 10GBASE-T, works perfectly well over Cat 6a.
The honest summary is that Cat 7a solves a problem most buyers do not have, with an installation difficulty they will feel. It is thick and stiff, and it demands disciplined grounding. Unless a specification document in front of you says Class FA, shielded Cat 6a is the better cable for a long run, and Cat 8.1 for a short one in a data center.
Specifications
Quality bars show where each figure sits between the lowest and highest of the 8 ethernet cables this VS Score is measured against.
Speed & reach
Construction & shielding
Power & connectors
Standards & status
Sources and verification
Where the specifications come from
- Official product pagewebstore.iec.ch
- Datasheet or manualwebstore.iec.ch
Verification
- First published
- Specifications last checked
- Sheet completeness
- 18 of 28 specifications verified; the rest show as Unknown and are never estimated or scored
- Page type
- Product specification page — Compiled from the manufacturer’s published specifications and the cited sources; this is not a hands-on test.
- Basis
- Research-based: specifications and editorial text were compiled from the documents listed here and the manufacturer’s published data. We have not tested this unit ourselves; where independent measurements are mentioned they belong to the linked publication.
Ratings & reviews
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The bottom line
The Cat7a Ethernet Cable earns a VS Score of 76, above the median of the 8 ethernet cables it is measured against (a score of 50 is level with that median).
- Who it’s for
- Class FA specifications and multi-service cabling where data shares a sheath with other signals.
- Who should look elsewhere
- Data-only networks, since nothing you can plug into an RJ45 port goes faster on it than on Cat 6a.
- The trade-off that matters
- A gigahertz of bandwidth that Ethernet cannot exploit, bought with thickness, stiffness and strict grounding requirements.
- The main alternative
- Cat6a Ethernet Cable: the same Ethernet speed and distance on standard RJ45
The VS Score is calculated from the weighted specifications above, each measured against the median of comparable ethernet cables — a shortlisting guide, not a substitute for your own priorities. See how we score.