ASUS Hyper M.2 X16 PCIe 3.0 X4 Expansion Card V2 Supports 4 NVMe M.2 (2242/2260/2280/22110) Upto 128 Gbps

Amazon sells this item. Not a plug and play adapter, have to manually change the PCIe settings in bios. After researching some info, others have managed to get all 4 slots working but with setting the bios in raid mode. For me, I only am using 2 slots as I don't want a raid configuration, so setting the #2 PCIe to 4x4 allows the use of 2 M.2 drives. The MSI X570 ACE allows for 3 M.2 installed in the MB, and running 4 other 2TB M.2 drives is plenty. Just didn't want to give up the X16 slot. That is 7 each 2TB M.2 drives, 4th gen on 6 drives (2 each Samsung 980 Pro, 2 each Corsair MP600, 2 each Western Digital SN850) and 3rd gen on a Samsung 970. It is called Bifurcation, , learned a new word!

Inateck PCIe x16 to M.2 Card, 4 NVMe SSDs Supported, Built-in Cooling Fan, PCIe Bifurcation Motherboard Required, KN4338 is on sale and does the same thing.​

Hi, there's not much to those adapters, basically wire to wire connection with some power filters. They are not "smart" or PnP and all SSDs on it share PCIe lines from PCIe slot which in turn share those PCIe lines with other PCIe devices. In BIOS and OS each SSD should show on it's own just as they would if plugged in M.2 slots on the MB or separate PCIe slots.

Hello CountMike,
Just wanted to get away from the spinning drives and move up to more modern toys. Was curious to see if there was any major difference, nope! The bios has to be changed from "AUTO" to a select option or the adapter only shows one M.2.