A-49 Updates & Drivers A-49 System Update Version 1.40 This is the latest version of operating system for the A-49. After downloading and extracting the compressed file, please refer to the “A-49_System_Update_Procedure” pdf document included for the update procedure. A-Series Keyboard Driver Ver.1.0.4 for macOS Big Sur 11.x / Monterey 12.x / Ventura 13.x / Sonoma 14.x / Sequoia 15.x SMF Player for macOS Big Sur 11.x - macOS Sequoia 15.x For macOS Big Sur 11.x and later, please use this. SMF Player for macOS 10.13 - macOS 14.x