The crystal interface is often referred to as the RJ45 type network cable plug, made of eight cores, which is used to connect LAN and ADSL broadband Internet users.

The NIC interface is the most common application for the RJ45 interface. There are two sorts of RJ45, namely white orange, orange, white green, blue, white blue, green, white brown, brown, white green, green, white orange, blue, white blue, orange, white brown, brown.

The full name of RJ is Registered Jack, which means registered jacks, the source of which is the code in Bell System's Universal Service Ordering Codes (USOC). Universal Service Ordering Codes is a series of registered jacks developed by Bell Systems and their wiring. The function is to connect t...