While updating our CPU testbeds for some upcoming testing, we came across an odd listing on the UEFI updates page for our ASUS ROG STRIX Z370-E motherboard.

From the notes, it appeared that the release from late April of this year enables VROC for the Z370 platform. Taking a look at the rest of ASUS Z370 lineup, it appears that all of its models received a similar UEFI update mentioning VROC.
While we are familiar with VROC as a CPU-attached RAID technology for NVMe devices on the Intel X299 and Xeon Scalable platforms, it has never been mentioned as an available option for the enthusiast grade Z-series chipsets. Could this be a preview of a feature that Intel has planned to come for the upcoming Z390 chipset?
Potential advantages of a CPU-attached RAID mode on the Z370 platform mostly revolve around throughput. While the chipset raid mode on the Z370 chipset will support three drives, the total throughput is limited to just under 4GB/s by the DMI 3.0 link between the processor and chipset.