It's a sweet unit at a nice price. I've got one of these that I use. You'll just need to add an AC adapter, an extra SNES one will work, and you'll be up and running. Tototek sells more ram as well, so y ou can upgrade to hold more games. You can even hook the SF7 up to the computer via the parallel port if you've got a port that's not too picky. UCon64 is a useful piece of software to pick up.


Here's a few more links that have some more info.
http://www.emucamp.com/red/SNES/PSF2.html
http://www.emucamp.com/red/UTILITIES/index.shtml
http://supermodified.net/gamedoctorsf7/index.htm

And finally, my crappy page about it too. There's a manual scan there.
http://scooby105.googlepages.com/professorsfii