UBA Downloader 4.0 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The software is categorized as Development Tools. The actual developer of the program is JAPAN CASH MACHINE CO., LTD.
From the developer:
This application will download a data file from a PC to the UBA validator for software upgrade purposes. The software is free and based on its simple interface containing a few fields and buttons you will be updating your product with a few clicks. Be careful for product versions when updating.
You may want to check out more software, such as Lucky Downloads search, Free Spotify Music Downloader or StreamFab Crunchyroll Downloader, which might be related to UBA Downloader.