I think that every CPU that's supported by the RVE had its new ucode marked as production in the document (which is no longer available for some reason), so it's up to ASUS now...
I don't know about ASUS but Intel did update this pdf and the "Haswell Perf Halo" microcode is now in the 'Beta' stage, in the previous version of this pdf it was only in the 'Planning' stage. https://newsroom.intel.com/wp-content/uploads/sites/11/20...
This Broadcom WIFI driver from lenovo works with the R5E and is a newer version than what the asus site offershttps://support.lenovo.com/de/en/downloads/ds103679also, I usually leave the default Asmedia USB3.0 drivers installed because both the drive...
I used this internal USB hub https://www.nzxt.com/products/iu01-USB-Expansion to enable all front panel usb 2.0 ports on my 900D with the R5E. It works pretty well.