# SIM cards

## 1. Check contents of the delivery

First, let us check if you received everything correctly. There should be two KPN Things SIM cards in the package.

<figure><img src="https://1453626848-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl6RrePMSAjRvOgcHjMBZ%2Fuploads%2FYVBWG975WXSX2RquTqSa%2Fimage.png?alt=media&#x26;token=c9d8189a-18da-4567-8c2b-bb1e2eccb288" alt=""><figcaption></figcaption></figure>

## 2. Check KPN Things Portal

Then, the SIM cards should be visible in your KPN Things Portal on the **All Connectivity** page.

{% hint style="warning" %}
If you don't see your SIM cards, please contact us on **<iot@kpn.com>** and we will check if everything is correctly configured.
{% endhint %}

<figure><img src="https://1453626848-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl6RrePMSAjRvOgcHjMBZ%2Fuploads%2FlwppisB7SnPdYRB0KTQ2%2Fimage.png?alt=media&#x26;token=7c811d99-db27-4cf9-840a-3b7057fefb39" alt=""><figcaption></figcaption></figure>

## 3. Obtain a Device

You now have a KPN Things SIM card in your possession, a SIM card that can be put in a programmable device to grant it direct access to KPN Things through a secure channel.

This SIM card supports connection to the following networks of KPN:

* LTE-M
* 2G
* 3G
* 4G
* 5G

Don't you have a programmable M2M Device yet? You should get one! We have some tips for you:

1. We have the most elaborate documentation on getting the **SODAQ SARA AFF R412M** to work with KPN Things, so getting such a device will provide you the [best getting started guide](https://docs.kpnthings.com/kpn-things/getting-started/tutorials/connect-devices/sodaq-r412m) that we have.
2. **Other SODAQ SARA devices, like the SFF R412M** or devices with a different modem should also work with our developer kit guide. You should only take into account some different settings.
   * For instance for SARA SFF devices, you should use Board type *SODAQ SFF*.
3. Our [Device SDK](https://kpn-iot.github.io/thingsml-c-library/) also contains example code for the **Arduino MKR GSM 1400**, laying the basics for all Arduino based M2M devices.
4. If you want to use **non-Arduino based devices**, you would need to write your own code to interface with KPN Things. This M2M interface is explained in the [Things M2M documentation](https://docs.kpnthings.com/kpn-things/building-blocks/connectivity/connecting-m2m-devices).