Got my ten NIC cards today. I was having trouble with my Linksys NIC, so I shut down my XP computer and swapped this Belkin with the Linksys. XP booted and installed the card without even telling me a new piece of hardware was found. It worked perfect.*
It is identified as: Realtek RTL8139 Family PCI Fast Ethernet NIC
Hopefully there is native support as far back as Windows 98 as I might put these in friends computers. Retail box and everything. Such a deal. I like Dell.
*one thing to be aware of is that with XP, changing your NIC card is a dramatic change which accounts for three out of your six hardware changes! So don't change NICs when using XP unless you really need to. Otherwise you might be calling Microsoft to reactivate.