Cat7 Cable: The Connector Problem
Quick answer / TL;DR: Short answer: Cat7 (ISO Class F) is specified with GG45 or TERA connectors, not RJ45. Many products ship with RJ45 plugs, which caps the channel below the cable's rating. If your plant is RJ45, Cat6a is the practical 10G choice; buy Cat7 only where the whole channel – jacks, panels, cords – uses the matching interface.
Cat7 is the category where the cable and the connector part company: the cable is rated to 600 MHz and usually S/FTP, but the standard's connector is not the RJ45 most buyers expect – it is GG45 or TERA. Cables sold with RJ45 plugs are Cat7 cable with a non-Cat7 interface.
This is the connector guide: what the standard specifies, what the market actually sells, and how to buy Cat7 without creating a channel that cannot meet its rating.
What the Standard Specifies
| The element | Cat7 | The note |
|---|---|---|
| Band | 600 MHz | Class F |
| Shield | S/FTP typically | Pair foils plus braid |
| Connector | GG45 or TERA | Not RJ45 |
| Backward compatibility | Via GG45's RJ45 mode | At reduced performance |
The connector line is the one buyers miss: the cable arrives rated, the plugs do not carry the rating.
What the Market Sells
- Cat7 cable terminated with RJ45 plugs – the common product
- Cat7 jacks in keystone format with RJ45 front ends
- GG45 and TERA jacks, usually in project supply
- Panels matched to whichever interface the project chose
The market product is not fraudulent – it is a cable sold into an RJ45 world, and the channel rating falls to the weakest part.
The Practical Decision
| The situation | The choice |
|---|---|
| RJ45 plant, 10G need | Cat6a |
| Full Cat7 channel planned | GG45 or TERA throughout |
| Cable already bought with RJ45 | Treat the channel as Cat6a at best |
Standards and Verification
| The reference | The relevance |
|---|---|
| ISO/IEC 11801-1 | Class F and connector requirements |
| IEC 60603-7-7 | GG45 interface |
| TIA-568.2-D | Cat6a as the RJ45 ceiling |
| Field test | Channel test at the connector's class |
Per-SKU connector ratings are not provided in the knowledge base. The interface rule is standard; verify the connector interface before accepting a Cat7 claim.
Real-World Applications
The Cat7 cable with RJ45
A studio buying Cat7 patch cords with RJ45 plugs: the channel tested below Class F. Relabelled as Cat6a – the interface limitation documented.
The GG45 project
A broadcast facility specifying GG45 jacks and panels throughout: the channel tested at Class F – the only configuration where the rating holds.
The mixed panel
Cat7 jacks fitted to an RJ45 panel: the shells mated, the rating did not. The panel replaced with GG45 – the interface matched end to end.
Related reading: The category that works with RJ45 at 10G? Read the Cat6a cable guide — blogs/news/cat6a-ethernet-cable-guide
Related reading: The connector rules for field termination? Read the ethernet plug guide — blogs/news/ethernet-plug-buying
Frequently Asked Questions
Does Cat7 use RJ45 connectors?
Not in the standard – Cat7 specifies GG45 or TERA. RJ45-terminated Cat7 products cap the channel below Class F.
Is Cat7 better than Cat6a?
On paper it has more band, but with RJ45 terminations the practical channel is Cat6a-level at best.
Should I buy Cat7 for a home network?
No – Cat6 or Cat6a exceeds any home requirement and uses standard connectors.
What is GG45?
A connector that carries Cat7 performance and also accepts RJ45 plugs in a backward-compatible mode.
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.