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Category 7 cable (CAT7), (ISO/IEC 11801:2002 category 7/class F), is a cable standard for Ultra Fast Ethernet and other interconnect technologies that can be made to be backwards compatible with traditional CAT5 and CAT6 Ethernet cable. CAT7 features even more stringent specifications for crosstalk and system noise than CAT6. To achieve this, shielding has been added for individual wire pairs and the cable as a whole.

The CAT7 cable standard has been created to allow 10-gigabit Ethernet over 100 meters of copper cabling. The cable contains four twisted copper wire pairs, just like the earlier standards. CAT7 can be terminated in RJ-45 compatible GG45
electrical connectors which incorporate the RJ-45 standard, and a new
type of connection to enable a smoother migration to the new standard.
When combined with GG-45 connectors, CAT7 cable is rated for transmission frequencies of up to 600 MHz.

Also being considered is a non-RJ-45-compatible standard developed by Siemon which forgoes compatibility in exchange for performance, and doubles the transmission frequencies of RJ-45.[1] The TERA interface is the only non-RJ category 7/class F industry-standard connector recognized within ISO/IEC 11801 Ed. 2.0.

Other categories of network cables

• Cat 1: Currently unrecognized by TIA/EIA. Previously used for POTS telephone communications, ISDN and doorbell wiring.
• Cat 2: Currently unrecognized by TIA/EIA. Previously was frequently used on 4Mbit/s token ring networks.
• Cat 3: Current cable standard, used for data networks utilizing frequencies up to 16MHz. Popular for 10 Mbit/s Ethernet networks.
• Cat 4:
  Currently unrecognized by TIA/EIA. Provided performance of up to 20MHz,
  and was frequently used on 16Mbit/s token ring networks.
• Cat 5:
  Currently unrecognized by TIA/EIA. Provided performance of up to
  100MHz, and was frequently used on 100Mbit/s ethernet networks.
  Suitable for 1000BASE-T gigabit ethernet.
• Cat 5e: Provides performance of up to 125MHz, and is frequently used for 1000BASE-T gigabit ethernet.
• Cat 6: Defined by the ANSI TIA/EIA 568B-2.1. It provides performance of up to 250MHz, more than double category 5 and 5e.

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