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I agree, I have enough bad experience with on-board NAND from other SBCs; it's no fun at all.

The SD cards are nice for most use cases, but on some boards I'd really like to see a SATA port or M.2 slot which can be booted from and a x4 PCIe port (even if through an optional board or a HAT).

I see the SD cards on the Raspis as modern floppy discs. They are good to have, but not ideal for some cases.

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I personally would not trade the hat real estate for an M.2 slot in most use cases. I use that hat slot for peripherals that enable unique and fun applications. Micro SD is horribly unreliable, but idk what the solution is without trading a significant amount of space.

M.2 is the way

People have already achieved it by hardware hacking

Hardware hacking not necessary if you use the Compute Module 4; many boards are already integrating M.2 slots: https://pipci.jeffgeerling.com/boards_cm

My hope is the next Pi model B might include an M.2 slot (maybe 42mm long) on the bottom.

> many boards are already integrating M.2 slots: https://pipci.jeffgeerling.com/boards_cm

Which ones are you seeing with M.2 slots? I've clicked a good 5-8 of the top listings from that list for which it would make sense to have such slot and they're missing it.

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