Downloading NODE Firmware Updater 21.52 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. The program relates to System Tools. This free software for Mac OS X is an intellectual property of Variable Inc.
From the developer:
NODE Firmware Updater is a free application that allows you to install the latest firmware for your Node device. The updater program will automatically download the latest firmware version from the website and update your NODE. When the Updater finishes, your NODE will be using the latest firmware.
You may want to check out more software for Mac, such as ToFi, iStar Composer or toDoo, which might be similar to NODE Firmware Updater.