Note: they also recently started selling Pi-branded microSD cards; in that case, A2 class cards that are compatible with command queueing making them much faste

Note: they also recently started selling Pi-branded microSD cards; in that case, A2 class cards that are compatible with command queueing making them much faster than most typical C10 or A1 cards people would buy. These SSDs are mostly just PCIe Gen 3 SSDs, with not much to differentiate from what's on the market today. Though having a first party solution pretty much guarantees compatibility (a few NVMe controllers don't play nice with the Pi's PCIe bus and require some fiddling to get working).