The FFXGSTKS4FX1W is a flight FX case is specifically made to fit the popular Traktor Kontrol S4, Kontrol F1, and Kontrol X1 controllers. It's designed with a bottom pullout "GT" glide tray underneath the S4 controller to store cables and place other gear such as a compact keyboard or hard drives, and includes storage utility compartments with pluck foam you can customize behind the F1 and X1 sections. Other features include a V-Cut™ front removable panel for easy access to the front input jacks, ball corners, and heavy-duty recessed handles and latches.