# Argon ONE M.2 Expansion Board (CE07436) **URL:** \ **Category:** Product Questions\ **Created:** [10 October 2021 22:50 UTC](https://forum.core-electronics.com.au/t/argon-one-m-2-expansion-board-ce07436/11763 "2021-10-10T22:50:40Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Core](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/core/32/57_2.png) [@Core](https://forum.core-electronics.com.au/u/Core)\ **Post date:** [10 October 2021 22:50 UTC](https://forum.core-electronics.com.au/t/argon-one-m-2-expansion-board-ce07436/11763/1 "2021-10-10T22:50:40Z")
This is a placeholder topic for [**“Argon ONE M.2 Expansion Board”**](http://core-electronics.com.au/catalog/product/view/sku/CE07436) comments. ![](https://core-electronics.com.au/media/catalog/product//a/r/argon-1-m.2-board-1.jpg) Argon ONE M.2 Expansion Board extends support for M.2 SATA SSDs to maximize the true potential speeds of your Raspberry Pi 4. You will now be able to boot via an M.2 SATA SSD for faster boot times and larger storage capacity compared to the traditional microSD Card. [**Read more**](http://core-electronics.com.au/catalog/product/view/sku/CE07436) ---
**Author:** ![Ray79451](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/ray79451/32/5316_2.png) [@Ray79451](https://forum.core-electronics.com.au/u/Ray79451)\ **Post date:** [10 October 2021 22:50 UTC](https://forum.core-electronics.com.au/t/argon-one-m-2-expansion-board-ce07436/11763/2 "2021-10-10T22:50:41Z")
Are you sure the M.2 needed is KEY M? The reviews I read stated a key B instead. ---
**Author:** ![James](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/james/32/4400_2.png) [@James](https://forum.core-electronics.com.au/u/James)\ **Post date:** [11 October 2021 05:30 UTC](https://forum.core-electronics.com.au/t/argon-one-m-2-expansion-board-ce07436/11763/3 "2021-10-11T05:30:04Z")
Hey Ray, This might clear things up a little: ![image](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/2/2184df1fa46e94acda3c287f8da6480d9c37c618.png) The key just refers to whether the socket has a raised section in the shown positions, if a socket has neither key, then a drive of any type can go in (as shown in the product description. If you could link where it says to use a B-Key, that’d be helpful in wrapping my head around it or correcting me. -James EDIT: Mistyped there, I meant > link where it says to use a **M-Key,** ---
**Author:** ![Ray79451](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/ray79451/32/5316_2.png) [@Ray79451](https://forum.core-electronics.com.au/u/Ray79451)\ **Post date:** [11 October 2021 09:56 UTC](https://forum.core-electronics.com.au/t/argon-one-m-2-expansion-board-ce07436/11763/4 "2021-10-11T09:56:17Z")
it’s written in the board: B or B+M key ![Screenshot 2021-10-11 205535](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/c/cea16463f3398d04d764fd6865f11ac40a705e44.png) ---
**Author:** ![Bryce](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/bryce/32/3631_2.png) [@Bryce](https://forum.core-electronics.com.au/u/Bryce)\ **Post date:** [12 October 2021 03:47 UTC](https://forum.core-electronics.com.au/t/argon-one-m-2-expansion-board-ce07436/11763/5 "2021-10-12T03:47:13Z")
Hey Ray, Yes, it’s keyed. B and B+M (two-gaps) works fine. But there’s no way to be able to mount M correctly with that particular board. If you have any other questions please let us know. ![image](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/7/792ea6bcd43902352147a4901389cf330322d921.jpeg) ---
**Author:** ![Ray79451](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/ray79451/32/5316_2.png) [@Ray79451](https://forum.core-electronics.com.au/u/Ray79451)\ **Post date:** [12 October 2021 05:08 UTC](https://forum.core-electronics.com.au/t/argon-one-m-2-expansion-board-ce07436/11763/6 "2021-10-12T05:08:23Z")
Well, then, you should CORRECT THE DESCRIPTION TAB then 🙂 . It says “M”. ![Screenshot 2021-10-12 160900](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/a/ad1bf9c172f38286c0389ad3a7a86ff96243096e.png) ---
**Author:** ![James](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/james/32/4400_2.png) [@James](https://forum.core-electronics.com.au/u/James)\ **Post date:** [13 October 2021 01:29 UTC](https://forum.core-electronics.com.au/t/argon-one-m-2-expansion-board-ce07436/11763/7 "2021-10-13T01:29:52Z")
Hi Ray, Good catch! You should see the correct lettering soon. We grab descriptions directly from the manufacturer, so it’s likely Argon40 had this wrong on their site when they introduced the product, hopefully this happens less in future! -James ---
**Author:** ![Bryce](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/bryce/32/3631_2.png) [@Bryce](https://forum.core-electronics.com.au/u/Bryce)\ **Post date:** [15 October 2021 05:58 UTC](https://forum.core-electronics.com.au/t/argon-one-m-2-expansion-board-ce07436/11763/8 "2021-10-15T05:58:58Z")
> [@Ray79451](#): > > CORRECT THE DESCRIPTION TAB then 🙂 Ah good point, I was looking at the datasheet instead 😅 Fixed: ![image](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/1/1443fc82eb3fc3c766004281e60e63ec214ec624.png) Thank you for letting us know! ---
**Author:** ![Andynospam109842](https://avatars.discourse-cdn.com/v4/letter/a/85f322/32.png) [@Andynospam109842](https://forum.core-electronics.com.au/u/Andynospam109842)\ **Post date:** [19 October 2022 13:18 UTC](https://forum.core-electronics.com.au/t/argon-one-m-2-expansion-board-ce07436/11763/9 "2022-10-19T13:18:19Z")
Is this expansion compatible with the V1 Argon (the earlier version with micro HDMI ports)? ---
**Author:** ![Trent5487676](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/trent5487676/32/4583_2.png) [@Trent5487676](https://forum.core-electronics.com.au/u/Trent5487676)\ **Post date:** [20 October 2022 00:23 UTC](https://forum.core-electronics.com.au/t/argon-one-m-2-expansion-board-ce07436/11763/10 "2022-10-20T00:23:06Z")
Hi Andy, Good news! The expansion board does work with both the ONE V1(micro-HDMI) and ONE V2(full sized-HDMI) case. ---
**Author:** ![Trent5487676](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/trent5487676/32/4583_2.png) [@Trent5487676](https://forum.core-electronics.com.au/u/Trent5487676)\ **Post date:** [20 January 2023 00:16 UTC](https://forum.core-electronics.com.au/t/argon-one-m-2-expansion-board-ce07436/11763/11 "2023-01-20T00:16:08Z")
PSA - If you are getting a red and white screen that attempts to boot from USB and then fails in a loop you’ll want to check your SSD connector is seated as shown below. [![](https://core-electronics.com.au/attachments/uploads/m-2-seated.jpg) ](https://core-electronics.com.au/attachments/uploads/m-2-seated.jpg)