---
title: Where do I install the SIMs?
description: There are two sim card slots on the rear of the router. They are marked 5G and 4G. Note that the 5G sim card slot will also fall back to 4G when connection to a 5G tower is not available.…
url: "https://support.miri.tech/kb/where-do-i-install-the-sims/"
updated: "2024-10-24"
category: X510 FAQ
---

# Where do I install the SIMs?

There are two sim card slots on the rear of the router. They are marked 5G and 4G. Note that the 5G sim card slot will also fall back to 4G when connection to a 5G tower is not available. There is a sim card tool included in the X510 box.

![](https://support.miri.tech/wp-content/uploads/2024/10/image.png)