On this page, We are going to learn about the full form of RJ-45 and the meaning of RJ-45, As well as the meaning, definition, abbreviation, and acronym for RJ-45 in different categories. So you should read this post till the end.
The Full Form of RJ-45: Registered Jack
RJ-45 Stands for Registered Jack. RJ45 is a type of 8-pin connector pin that is commonly used for Ethernet networking. RJ-45 jack I the standardized networking jack that is the part of United States Code of Federal Regulations.
it is also known as Ethernet cables OR Ethernet network adapters. mainly it is used to establish connections with PC network cards, data switches, WiFi access points, and routers RJ45 is a type of connector.
Mainly It is used for Ethernet networking including connection with PC network cards, data switches, WiFi access points, and routers to transfer data.

Version of RJ45
Two versions of the RJ45 connector are mainly used for usability and accurate data communication. The first version is known as T-568A and the second version is T-568B. T-568A is referred to as a crossover connector, while T-568B is referred to as a straight cable connector.
Difference between RJ45 and RJ11
RJ 45 | RJ 11 |
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RJ 45 cable is used in an ethernet cable | RJ 11 cable used in telephone line |
The size of the RJ 45 connector is larger | RJ 11 connector size is smaller |
RJ 45 supports 10 Gbps bandwidth | RJ 11 supports bandwidth up to 24Mbps |
The total number of cables connected to RJ45 is 8 | The total number of cables connected to RJ11 is 4 |
RJ45 is an 8P8C connector | RJ11 is a 6P4C connector |