The official Sega Dreamcast mouse is really a low-end product. The plastic quality is poor, the wheel does not catch and do not turn easily. In addition, the 3rd button is not at the wheel but on the side. Finally, this mouse is more than fragile, because of the poor sound quality plastic. In short, a purchase to avoid on pain of regret, the official keyboard when to him is worthy of the top brands available on PC, Sega, for this keyboard, much better choose his partner.