It's fast - much faster than USB or Ethernet.

I've got one of [link|http://www.newegg.com/Product/Product.aspx?Item=N82E16817332013&Tpk=venus%2besata|these] with a couple of SATA 500 GB hard drives. The reviews mention some magic that needed to be done to get Linux to see all the drives, but I haven't messed with that. It works fine with Winders.

It has a couple of [link|http://z.iwethey.org/forums/render/content/show?contentid=286079|minor issues] - e.g. I don't think it's trivial to boot from them.

HTH a bit. Good luck!

Cheers,
Scott.