I have an X-Surf here. I'm pretty satisfied with the card, I have plenty of alternatives for expansion (IDEs, clockports etc.), plus 2 connection plugs (coaxial or RJ45, you chose).
What bothers me is the transfer rate: The theoretical 1.5 Mbyte/sec is reduced to 130-150kb/sec, via SAMBA. Some tests have given a 500kb/sec via ftp, but what counts is the daily use with the PC shared volumes.
For an internet connection, is more than you need :-)
The "Eth" modules for Algor worth considering though... (you spare a Zorro slot!), plus you get the USB ports (Algor will be the next expansion for my A4000 :-D )
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Airsoft