SATA Express

SATA 3 Add On Card How To Add Extra SATA 3 Ports sata 3 slot 3 slots where most boards disable 2 of the sata ports, asrock disables the 3rd pcie slot in the case of the two boards you're looking sata slot Looking at the SATA Express connector on the motherboard above, you could confuse it for two SATA slots and maybe a third odd-looking connector

sata 3 slot SATA ports should you plug an NVME in each of the sockets Worst case is use one of the 3 PCIe x16 slots for an add-in SATA controller card