So I've literally had this problem for like a year. I just absolutely cannot get the onboard USB controller for this Supermicro X11SSH-LN4F to show up in ESXI as a pass-through option. It just doesn't appear in the list of pass-through hardware. I own a number of other Supermicro X11 boards and have had the same issue on them. Has anyone else been able to do this with any Supermicro X11 Motherboards? I've had this issue with both ESXI 6.0 and now 6.5. I've also looked at online forums for information about this and find very little. That said i understand that many people dont like these E3 xeon boards.