According to OverDrive they have a Chromebook app...
https://chrome.google.com/webstore/d...jogdnlnidceemb
This would download the audiobook, so the question someone can hopefully answer is if you can access the downloaded files on the Chromebook so they can be added to the Sansa or if the Chromebook app has a transfer feature like the Windows app. I guess the other question would be if the Chromebook will see the Sansa okay to allow access to it's file system.
Since OverDrive ditched DRM on all audiobooks they are just regular MP3 files so the requirements for transferring to devices aren't the same as they once were with WMA DRM.