I was toying once with seeing how many microSD cards one could fit on a decently-sized PCIe card. Using vertical connectors[1] you can cram quite a lot of them

I was toying once with seeing how many microSD cards one could fit on a decently-sized PCIe card. Using vertical connectors[1] you can cram quite a lot of them on there. Idea was to use a FPGA to present them as one big NVMe drive to the host, though that was with smaller cards. If I were a bored billionaire it's certainly something I'd do just for teh lulz. With 8TB cards you'd get a fairly impressive amount of storage. [1]: https://www.digikey.com/en/product-highlight/a/aces-group/vertical-microsd-card-connector https://www.digikey.com/en/product-highlight/a/aces-group/ve... (random example)