Roland S-550 USB drive (Gotek). Replaces the original floppy disk drive. Easy, solderless installation, the drive is specifically configured for the S-550 and is ready to use. A pre-configured USB drive with the operating system is included. The 3D-printed mount allows for a slightly wider screen than with Gotek enclosures. A 0.91″ OLED screen is installed. An encoder and buzzer are optional.