ICY DOCK ToughArmor MB720M2K-B which allows the user to use four M.2 NVMe drives in a single 5.25" drive bay with the focus on protection, cooling, and hot-swapping.
SATASASSlimline SATAPCIeU.2 SFF-8639miniSAS HD SFF-8643Oculink SFF-8612Slimline SAS SFF-8654CFexpress Type BUSB3.0(USB3.2 Gen1)USB3.1(USB3.2 Gen2x1)USB3.2(USB3.2 Gen2x2)USB4Thunderbolt 3MCIO(SFF-TA-1016)No Preference