---
title: "W5500 External Transformer - RJ45 Cable"
url: "https://maker.wiznet.io/forum/13682"
markdown_url: "https://maker.wiznet.io/forum/13682/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "Ginger"
created: "2020-02-05T20:28:09+09:00"
last_activity: "2020-02-06T04:59:23+09:00"
language: "en"
views: 723
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# W5500 External Transformer - RJ45 Cable

## Question

Asked by Ginger on 2020-02-05 in Ethernet Chips.

Hi,

I am designing an IoT module, I would like to use an Ethernet cable like the following image:

![Cable Ethernet](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/1/1a2ff8148825ebca71faa56d57b868e8a39d21e5.jpeg)

I based the design on the “Hardware design Guide” for “External Transformer”

Is it possible to use this type of cable instead of the RJ45 5631-S-K-F-L-8C?

Regards,

---

Source: https://maker.wiznet.io/forum/13682