Haven't stress tested it, but I got a FujiNet device and booted Total Replay over the internet on an Apple IIc Plus with it. Doesn't take long to download 32MB at modern speeds, it booted near-instantly. Very cool. Looking forward to having actual time to play with it. The one I got is a little one: https://www.tindie.com/products/masteries/fujinet-for-apple-ii-sdcard-and-internet-interface/