SP-404SX Drivers e Atualizações SP-404SX System Update Version 1.07 This is the latest version of operating system for the SP-404SX. After downloading and extracting the compressed file, please refer to the “SP-404SX_Update_Procedure” pdf document included for the update procedure. SP-404SX Wave Converter (PC) SP-404SX Wave Converter Ver.1.01 for macOS 10.14 / macOS 10.15 SP-404SX Wave Converter Ver.1.00 for Macintosh SP-404SX Utility CD-ROM