I currently have 2 USB 3.0 flash drives that are 256GB each (Patriot Supersonic Mega and PNY). I have attempted to boot an installed Windows in a VHD on each of these via Easy2Boot, as well as Windows to Go on each (not in a VHD or with E2B), but I was never able to get past the initial setup. Both of these drives are well over 200MB/s in regards to read speeds, so they should be fast enough (and they appear to be much faster than my 4TB Seagate USB HDD, from which I'm currently booting a 10LTSB with decent performance). I know that read speed will alway be higher than write speed. I need something that is preferably the fastest rated 3.0 on the market, and is at least 128GB (256 or 500/512 preferred). If possible it should be Windows to Go certified or similar (but the official WTG drives are costly so they may not be an option). I would prefer to boot a VHD on such a drive via E2B, but if this doesn't work out then I'll simply dedicate the entire drive.
Perhaps I should consider a USB FDD that has a SSD controller instead (which will hopefully be around the same size as an FDD and fixed instead of removable (so I can install Windows to it via official GUI methods)?