ASRock's making another slightly long ITX server board but this time in B550, to go with their existing EPYC board. Looks potentially interesting for compact NAS builds particularly; built in 2x10g (on a good chipset, even), 2xM.2, 4xSATA (plus however many you pull off the PCIE slot with a HBA, as you don't need that for networking), and 4 DIMM slots. Also supports 12V DC-in, so potentially could get some pretty compact power supplies going there.
