$49.95 U.S.

Or you can buy direct from S-E-G-A

It's a bit more....
$59.99 U.S. plus shipping

†††††††††††††††††††††††††††††††††††††††††††††††††† ††††††††††††††††††††††††††††††††††††††††

At your local retail outlet that carries Dreamcast accessories. I got mine at FuncoLand.