The com.apple.MobileAsset.MobileAccessoryUpdate.A2119
MobileAsset type contains firmware updates for the Apple USB-C Digital AV Multiport Adapter.
It's published in mesu for iOS (manifest) and macOS (manifest).
The earliest (and only!) known version of the manifest and firmware is from 2 February 2021
, but it could have been earlier. As of January 2025 , the asset still has the same contents as back in 2021.A newer version is published as a separate asset com.apple.MobileAsset.MobileAccessoryUpdate.A2119-22G
.
Based on the name, the new asset might be what is used starting on macOS 13.5 (22G74).