An Ethernet port is also called a jack or a socket. The purpose of this port of socket is to connect wired network hardware in a local area network (LAN), a metropolitan area network (MAN), or wide area network (WAN).
A Cat 7 Jack is a jack is a port that is compatible with Cat 7 ethernet cables or wires. Cat 7 Jacks are required when the installation uses Cat 7 Ethernet cabling. Cat 7 cables are a 4-pair ethernet cable typically used for data center networks.
Cat 7 cables have a 10-gigabit speed capability with a 600 MHZ speed specification. This is an improvement on previous categories. Cat 7 cables are also backwards compatible with all previous categories. There will be a reduction in speed with backward compatibility.
Cat 7 features even stricter specifications for crosstalk and system noise than previous categories. To achieve this, shielding was added for individual wire pairs and around the entire cable.
The standard Cat 7 cable has 4 shielded pairs of wires with a drain wire that connects to the connector, referred to as S/FTP. Cat 7 was designed for professional and advanced business use.
Cat 7 is engineered to improve on previous categories by having a max speed of 10 GB and expanded frequencies up to 600 mhz. This is done with a tighter twist ratio and individual shielding.