New firmware for X299 Dark adds "PCIe SSD Card (Non-VROC)" option that “can be used to set a PCIe x16 slot to x4x4x4x4 without VROC”.
What is this for / what does it mean, please? Does it mean I would be able to put four M.2s in one of those add-on PCIe cards and Windows would see four extra NVMe drives without needing anything else?