---
title: "How to find Wiz820io MAC address"
url: "https://maker.wiznet.io/forum/10976"
markdown_url: "https://maker.wiznet.io/forum/10976/md"
type: "Forum topic"
category: "IO Modules"
author: "nikodiyana"
created: "2015-04-16T21:03:00+09:00"
last_activity: "2017-05-04T08:35:32+09:00"
language: "en"
views: 1104
replies: 2
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# How to find Wiz820io MAC address

## Question

Asked by nikodiyana on 2015-04-16 in IO Modules.

Hi,

I just purchased a Wiz820io module and there is no where a sticker or a number showing its MAC address.
How can I find it?

Thanks,
Niko

## Replies

### Reply 1 by jeongsk, 2015-05-04

Hi nikodiyana

WIZnet network module has no MAC.

WIZ820io is a product without a MAC. Should write a MAC directly from the MCU.

The product is WIZ550io only the MAC in the network module.

Thanks.

### Reply 2 by nikodiyana, 2015-05-07

Thanks!

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Source: https://maker.wiznet.io/forum/10976