I didn't know that model even existed, I've never seen it mentioned in any of the PS2 docs I read... But it make perfect sense now that I think of it, to develop and test the online 56k modem titles you'll need them. Have any of you ever encountered one of those?
I have one of those for a an early ps2 debug. I'm guessing you bought the ones on ebay. It's cool, but it didn't seem too useful to me really.
I saw that auction and was seriously considering it.. same thing though- i didn't need 2... one would be nice however...