# \[Math\] Number of ways to insert 4 wires into 8-pin 8P8C Ethernet connector

DevFeed: [\[Math\] Number of ways to insert 4 wires into 8-pin 8P8C Ethernet connector](<https://devfeed.tech/articles/math-number-of-ways-to-insert-4-wires-into-8-pin-8p8c-ethernet-connector-20559.md>)

Original publisher: [Read original article](<https://yurichev.com/blog/ethernet/>)

Published: 2025-12-08T23:00:00Z

Content type: article

Language: en

Sources: [Dennis Yurichev](<https://devfeed.tech/sources/dennis-yurichev.md>)

Topics: [Ethernet](<https://devfeed.tech/topics/ethernet.md>), [math](<https://devfeed.tech/topics/math.md>)

Tags: [ethernet](<https://devfeed.tech/tags/ethernet.md>), [math](<https://devfeed.tech/tags/math.md>)

## AI overview

This article uses combinatorics to count ways of inserting four wires into an 8-pin 8P8C Ethernet connector and connecting two such connectors. It gives counts of 24 permutations for known Ethernet pins, 70 choices when the pin positions are unknown, and 117,600 possible connections using four wires.

## Source excerpt

[Math] Number of ways to insert 4 wires into 8-pin 8P8C Ethernet connector