Cables with T568A or T568B using modular connector 8P8C ("RJ-45")
True RJ45 is very rare and uses only a single pair of conductors (8P2C) Registered jack. And two more for a "programming" resistor.
|Said to be the same as||8P8C modular connector|
These connectors are actually not RJ-45. They are modular connector 8P8C. This category is for electrical ethernet cables, their 8P8C equipment, socket and plugs. See the sources.
The term RJ45 is often used to refer to what is in fact a 8P8C connector TIA/EIA-568-B