Yes it works...
...with US consoles as well. I'm glad I was able to get a controller for this low price. It is new in package, and it works with saving games. I already got Lost Hope saved, a game which I've ordered from this site as well.

Memory card, and a bunch of other functions
No, this is not as useful as a swiss army knife, but this is one of the BEST and the most creative memory card ever invented for a game console.
Not just a way to store saved games and game data, but also for mini games. too bad not that many vmu games are created. but fortunately, you can find home-brew vmu games on the internet.

Wow
Still the most intuitive memory card out there. I was lucky enough to get a DreamCast recently with Shenmue and Sonic Adventure and while playing Shenmue I was delighted to find that the VMU displayed the keys I had to press to learn a new move. Truly great. =D

Happy and upset
I was very pleased with the fast shipping. When I received the vmu, the battery was dead.

the little card of miracles
The Dreamcast as a machine was far ahead of its time, offering an amazing range of games, and internet functionality, accompanying these games on this fantastic machine was a little memory card device known as the VMU.

the VMU(Visual Memory Unit) which goes into the controller, offers a display and sometimes a little screensaver whilst playing the game, more often showing the HP of your character, or used for mini games like in Skies of Arcardia.

this V M U card is amazing, if you love your dreamcast, this is a must

im not sure if you can anymore but you used to be able to download games onto the VMU when online with the dreamcast