The TOADs Digital Interface is based around a CM108 audio chip which is commonly used in Linux based ham radio applications (AllstarLink, Direwolf etc).
Rather than having to modify a CM108 soundcard to use with your Allstar nodes (which can be difficult to do!) this board does it all for you!
These are available to VK & NZ (Australia and New Zealand ONLY) via this site. To order boards for the USA - please see the Temporarily Offline store here - https://temporarilyoffline.com/HAMRADIODX
Not only that but you can use it for other applications that support the CM108 interface for PTT signaling.
For more information check out the manual here > https://geni.us/toads-di
Support is available only via the #toads-di channel on the TOADs Discord > https://discord.gg/EU8haRvcKf