Dreamcast Arcade Stick
From Sega Retro
The Dreamcast Arcade Stick is an arcade stick peripheral for the Sega Dreamcast. A well built controller, the arcade stick functions exactly as a standard gamepad though lacks the D-pad. It also has space for a VMU (though can only store one at a time).
Its metal faceplate and similarities with "real" arcade hardware means the Sega Dreamcast Arcade Stick is a popular choice for when constructing MAME cabinets. There are a number of third party arcade sticks, though the official Dreamcast stick is often considered to be the best.
Physical Scans
With VMU inserted