Eh, are you hooking an external power supply for the 4 SATA drives? It probably wouldn't boot off the card (especially if it's a JBOD card) but my own 5070 is the thin one and all I have is an M.2 based quad SATA card. Pretty sure you can in theory (not that its a great idea) install TrueNAS core into the eMMC on the thin client and then run a 4 drive cage off a card. I did have the crazy idea of doing that with an HP t420, an external cage and my old Cobalt Qube chassis...any idea would it work for the purpose of setting NAS, if insert a 4x Sata ports card into the 5070 extended?
would 5070 Bios support booting from those 4x Sata harddisk ports?