Cat 6A vs. Cat 7 Standards, Shielding, and Connectors
Cat 6A is a TIA-568 category cable rated to 500 MHz that supports 10 Gb/s over a 100-meter channel on standard RJ45 connectivity. Cat 7 is an ISO/IEC 11801 category rated to 600 MHz, built with every pair individually shielded, and it is not recognized by TIA. That is the core difference between Cat 6A and Cat 7, and it shapes which one a project specification calls for.
Whether a project calls for Cat6a or Cat7 usually comes down to three factors: the standard the specification follows, the electromagnetic interference (EMI) conditions in the space, and the connector interface on the network equipment. Below, we compare Cat 6A vs. Cat 7 on each one.
Cat 6A vs. Cat 7 at a Glance
The table below compares Cat 7 cable vs. Cat6a on the points that most often appear in a project specification.
Cat 6A | Cat 7 | |
Standards | TIA-568 and ISO/IEC 11801 | ISO/IEC 11801 (Class F channel) |
Rated frequency | 500 MHz | 600 MHz |
10GBASE-T | Supported to 100 meters | Supported |
Shielding | Unshielded (U/UTP) or shielded (such as F/UTP) | Every pair individually shielded (commonly S/FTP) |
Connector interface | RJ45 | Cat 7 connectivity (GG45 or TERA) for Class F performance |
How Cat 6A and Cat 7 Are Defined: TIA vs. ISO/IEC
Two standards bodies define copper category cabling. TIA-568 is the reference for most North American projects. ISO/IEC 11801 is the international standard; it rates components by category and complete channels by class.
Cat 6A is recognized by both. Cat 7 is not. ISO/IEC ratified Category 7 in 2002 as the component level for a Class F channel, and TIA did not adopt it. In 2010, ISO/IEC added Category 7A for Class FA channels, rated to 1,000 MHz. TIA has not recognized Cat 7A either.
As a result, Cat 7 is generally not specified in North America. It is more common in parts of Europe, where shielded cabling is more widely used.
Shielding: U/UTP, F/UTP, and S/FTP
Shielding names follow a two-part code from ISO/IEC 11801. The letter before the slash describes the overall shield around the cable. The letters after it describe shielding on the individual pairs.
U/UTP: no overall shield and no pair shielding.
F/UTP: a foil shield around all four pairs, with unshielded pairs inside.
S/FTP: a braided overall shield, with foil around each pair.
Cat 6A comes in both unshielded and shielded constructions, so shielded Cat6a is an option when a specification calls for it. Our Cat 6A line includes UTP in plenum and non-plenum ratings and F/UTP in plenum and riser ratings.
Cat 7 requires each pair to be individually shielded, most commonly in an S/FTP construction. Our Cat 7 cable has each pair individually shielded with overall shielding, uses 22 AWG solid bare copper conductors, carries a plenum rating, and is tested to 600 MHz.
Connectors: RJ45, GG45, and TERA
Cat 6A uses the RJ45 interface found on standard network switches, patch panels, and endpoints.
Cat 7 works differently. ISO/IEC defines Class F performance with Cat 7 connecting hardware, specified in IEC 60603-7-7 (GG45) and IEC 61076-3-104 (TERA). The GG45 design also accepts standard RJ45 plugs, but Class F performance depends on Cat 7 connectivity across the channel.
When Cat 7 cable is paired with Cat 6A RJ45 connectors, the system performs as a shielded Cat 6A system. The cable keeps its individually shielded pairs, but the channel performance is set at the Cat 6A level.
Speed and Distance
On speed, the Cat 6 vs. Cat 6A vs. Cat 7 comparison is closer than the frequency ratings suggest. Cat 6A supports 10GBASE-T across a full 100-meter channel, and our Cat 7 cable also supports 10GBASE-T. Cat 6 sits one step below Cat 6A in the TIA category structure. For how far each category carries 10 Gb/s, see our guide to Cat 6A distance limits.
Speeds above 10 Gb/s on twisted-pair copper belong to a different category. 25GBASE-T and 40GBASE-T are defined for Category 8, which is rated to 2,000 MHz with a 30-meter reach. They are not defined for Cat 7.
Matching the Cable to the Specification
Choosing Cat6a or Cat7 starts with the specification, not the frequency rating. Here is how common project conditions line up:
TIA-based specification, typical EMI: Cat 6A U/UTP meets TIA-568 Category 6A and supports 10GBASE-T to 100 meters.
TIA-based specification, elevated EMI: shielded Cat 6A (F/UTP) stays within TIA-568 and adds an overall foil shield.
ISO/IEC Class F specification: Cat 7 cable paired with Cat 7 connectivity.
Specification calls for individually shielded pairs: Cat 7 meets this by design. Confirm whether the specification also requires TIA-568 compliance, since Cat 7 is not recognized by TIA.
Confirming the connector interface early keeps the cable and the connectivity aligned.
See our Cat 6A cable and Cat 7 cable for constructions, ratings, and specification sheets.
Cat 6A vs. Cat 7 FAQ
Is Cat 7 better than Cat 6 or Cat 6A?
Cat 7 has a higher rated frequency (600 MHz vs. 500 MHz for Cat 6A) and shields every pair. Whether that makes it the better choice depends on the project. With RJ45 equipment, Cat 7 cable performs at the Cat 6A level, so Cat 6A is often the closer match to a TIA-based specification.
Is Cat 7 TIA-recognized?
No. Cat 7 and Cat 7A are defined in ISO/IEC 11801, and TIA has not recognized either one. Cat 6A is recognized by both TIA-568 and ISO/IEC 11801.
What is the difference between Cat 7 and Cat 7A?
The rated frequency. Cat 7 is rated to 600 MHz for Class F channels, and Cat 7A is rated to 1,000 MHz for Class FA channels. Both use individually shielded pairs, both are defined by ISO/IEC, and neither is recognized by TIA.
Can Cat 7 cable use RJ45 connectors?
It can be paired with Cat 6A RJ45 connectors, but the system then performs as a shielded Cat 6A system. Class F performance requires Cat 7 connectivity, such as GG45 or TERA.
The Cat6a or Cat7 decision follows the governing standard, the EMI conditions, and the connector interface. For more on category cable, visit our Category Cable Resource Center, or contact our team with your specification.
