Crown SDB-201 Violet
Korean manufacturer Crown made a new series of vibrant push buttons to cater to the FGC using Japanese arcade sticks as well as some Tekken 7 arcade machines featuring 30mm buttons. The SDB-201 is their answer.
The 201 looks similar to that of popular Japanese pushbuttons including the popular Sanwa OBSF-30. Despite the similarities, the 201 was made to provide a different experience. Instead of the fast action found on the OBSF-30, the SDB-201 has somewhat increased tension due to the clicky Futaba keyboard switches which are rated at 5 million presses!
The switches are also found on Crown's CWB-203C pushbuttons. While the 203C requires soldering, the 201 allows easy installation with your fightstick's quick disconnect terminals.
All models of the SDB-201 have screw-in spacer rings so it can work with metal panels with no problems.