That is a Dynamo HS5. The best way to tell them apart visually from the HS1 is that wooden base/frame at the bottom of the cab. HS1 cabs do not have that base.
The HS5 houses a 25" monitor and is heavy as hell. It is a very common cabinet that was often found in arcades of the 90s and turn of the millennium. They are usually found converted to various 90s fighting games. It is also common to find games like the Raiden series, various shoot 'em ups, and gun games among them as well.