I don't know about any other advantages, I only grabbed it because the Asantefast is one of only a few 10/100 cards made for Nubus Macs and the auction was ending. The price was also about 1/3 of what they normally go for. I've used 10baseT dongles through the AAUI port on some Macs and the built in 10baseT port on others and the internet connection speed isn't very satisfying though it is passable for direct Mac to Mac connections. I thought the fastest 68k Mac should have the fastest internet connection possible. I intend to do a lot of downloading of 68k software and web pages and building my own personal archive in case some of it disappears from the web one day and is unrecoverable. I may use the accelerated video card in my Quadra 700 instead of the 840AV. The built in video in the 840AV is a lot faster than the 700 to start with and the 700 is not as expandable so it needs the help more than the 840AV though I may move it to the 840AV from time to time if I ever have a need for a second monitor. I'm going to try to find the VRAM SIMMS for the 840AV and see how upgrading helps the video before I decide.
Oh and I think now the video card is a Precisioncolor variant of some type. Does anyone know how to identify the different cards by the part number on the board or maybe by the components mounted on the board? I have looked for a list of Radius part numbers but can't find one and I thought maybe one of you here might have compiled one for your own use that you haven't made public yet.