Strange but fast "bridgeboard" on Ebay

[McVenco]

I spotted this thingie on Ebay:

Ebay link

Does anyone here have one of these cards? TBBOAH doesn't seem to have info on it (at least, not in the Bridgeboard section)...

It's another auction from amix68k, btw, but I'm pretty much interested if this card is really useful. Would be cool to have a 1.4GHz processor in my A4000 :-D