SABnzbdX 1.2.7 for Mac can be downloaded from our website for free. The program lies within System Tools, more precisely Plugins & Addons. This software for Mac OS X was originally developed by org.sabnzbdx.
From the developer:
SABnzbdX is a GUI for monitoring/controling multiple SABnzbd hosts for OS X.
You may want to check out more software for Mac, such as iRooster, Add to iPhoto or Fabio's iTunes Lyrics Downloader, which might be related to SABnzbdX.