Software Downloads

PC Software

READ BEFORE YOU DOWNLOAD: Click Download to copy the STU Software installation file to your computer. After a short delay the file will appear at the bottom of your browser window. Use your mouse cursor to double-click on the file. This starts the installation.

Download PC – STU ST365 Software

Download PC – 32-bit (Windows 7, 8, and 10)
Download PC – 64-bit (Windows XP, 7, 8, and 10)

NOTE: Spectrum Techniques is aware there is an issue with the USX software running on Windows 10, version 20H2 (released 10/20/2020). The issue was fixed with the release of Windows 10, version 21H1 (released 5/18/2021). If you are experiencing any issues, make sure Windows is running the most recent version.

Mac Software

READ BEFORE YOU DOWNLOAD: Pre macOS Catalina only. Please be sure you have installed the latest Java on your Mac (Download Java for OS X 2015-001).

Download Mac – STU ST365 Software
Download Mac – FTDI Drivers
Download Mac M1 computers – STU ST365 Software

Download Mac – OSX Software

Legacy Software

If you need to download legacy software, visit our Legacy Products page.