# FW16 M.2 A/E Key slot SDIO support

**URL:** <https://community.frame.work/t/fw16-m-2-a-e-key-slot-sdio-support/55712>\
**Category:** Community Support\
**Tags:** framework-laptop-16-amd-7040\
**Created:** [August 5, 2024, 8:59pm UTC](https://community.frame.work/t/fw16-m-2-a-e-key-slot-sdio-support/55712 "2024-08-05T20:59:41Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![Peter\_Scott](https://avatars.discourse-cdn.com/v4/letter/p/f17d59/32.png) [@Peter\_Scott](https://community.frame.work/u/Peter_Scott)\
**Post date:** [August 5, 2024, 8:59pm UTC](https://community.frame.work/t/fw16-m-2-a-e-key-slot-sdio-support/55712/1 "2024-08-05T20:59:41Z")

</div>

Does the Framework 16’s A/E key M.2 interface support SDIO?

Looking at the schematic: [Framework-Laptop-16/Mainboard/Mainboard\_Interfaces\_Schematic\_Framework\_Laptop\_16\_7040\_Series.pdf at main · FrameworkComputer/Framework-Laptop-16 · GitHub](https://github.com/FrameworkComputer/Framework-Laptop-16/blob/main/Mainboard/Mainboard_Interfaces_Schematic_Framework_Laptop_16_7040_Series.pdf)

It appears that the SDIO pins are un-used, if I am reading the schematic correctly. Is that correct?

I ask, because I am trying to troubleshoot an MT7921 based M.2 E-key WiFi module which only supports SDIO 3.0 and not PCIe ( [Sona™ MT320 - Wi-Fi 6 + Bluetooth® 5.4 Module | Laird Connectivity is Now Ezurio](https://www.ezurio.com/wireless-modules/wifi-modules-bluetooth/sona-mt320-wifi-6-bluetooth-5-3-module) ).

I wanted to run some tests with this card for another project, so I threw it in my FW16 because I thought it would be a quick an easy way to test it. If the M.2 A/E Key slot doesn’t support SDIO, that is fine. I just want to confirm that it should not be working so I can stop trying to troubleshoot.

Thanks,  
Pete

---

<div class="post-metadata">

**Author:** ![James3](https://avatars.discourse-cdn.com/v4/letter/j/b5e925/32.png) [@James3](https://community.frame.work/u/James3)\
**Post date:** [August 6, 2024, 2:57am UTC](https://community.frame.work/t/fw16-m-2-a-e-key-slot-sdio-support/55712/2 "2024-08-06T02:57:42Z")

</div>

Hi. If it is a SDIO wifi card, why not get an adapter and plug it into a SD card expansion card? There is one that takes the larger SD card format now.

---

<div class="post-metadata">

**Author:** ![Peter\_Scott](https://avatars.discourse-cdn.com/v4/letter/p/f17d59/32.png) [@Peter\_Scott](https://community.frame.work/u/Peter_Scott)\
**Post date:** [August 6, 2024, 1:57pm UTC](https://community.frame.work/t/fw16-m-2-a-e-key-slot-sdio-support/55712/3 "2024-08-06T13:57:17Z")

</div>

I have this adapter: [ADP-uSD-M2](https://www.u-blox.com/en/product/adp-usd-m2) and I have the Framework Micro-SD card module, but am also having issues with that configuration and was trying to eliminate points of failure by not using two different layers of adapter to go form M.2 → Micro-SD → USB-C. At that point it isn’t really a Framework support question it is a Linux troubleshooting SDIO/M.2/mt7921s module issue which I am not going to expect support for here.

So back to the original question: Is the E-key M.2 connector wired for SDIO or not?

Thanks,  
Pete

---

<div class="post-metadata">

**Author:** ![James3](https://avatars.discourse-cdn.com/v4/letter/j/b5e925/32.png) [@James3](https://community.frame.work/u/James3)\
**Post date:** [August 6, 2024, 2:01pm UTC](https://community.frame.work/t/fw16-m-2-a-e-key-slot-sdio-support/55712/4 "2024-08-06T14:01:10Z")

</div>

I am looking at the same schematic as you. If the schematic is correct, it looks like the SDIO is not connected to anything on the wifi M.2 connector.

---

<div class="post-metadata">

**Author:** ![Peter\_Scott](https://avatars.discourse-cdn.com/v4/letter/p/f17d59/32.png) [@Peter\_Scott](https://community.frame.work/u/Peter_Scott)\
**Post date:** [August 6, 2024, 2:02pm UTC](https://community.frame.work/t/fw16-m-2-a-e-key-slot-sdio-support/55712/5 "2024-08-06T14:02:20Z")

</div>

Thanks. That was my conclusion but I wanted a second set of eyes to agree.

---

<div class="post-metadata">

**Author:** ![dileas](https://avatars.discourse-cdn.com/v4/letter/d/94ad74/32.png) [@dileas](https://community.frame.work/u/dileas)\
**Post date:** [October 6, 2024, 6:39pm UTC](https://community.frame.work/t/fw16-m-2-a-e-key-slot-sdio-support/55712/6 "2024-10-06T18:39:44Z")

</div>

I came here wondering this, so thanks for that. This is disappointing. I was looking to install an NXP 88W9098 solution, but all of the Bluetooth interfaces of extant cards appear to be SDIO (although the chipset appears to support USB3).
