Microsoft was rumored to have a Surface hardware event in March with many devices rumored to be announced and released. Some were known to the public like the Surface Duo and Surface Earbuds. Some were suspected to be getting an updated to the next version like the Surface Go 2 and Surface Book 3.
Surface Go 2 is rumored to be released in March. Well March came and went and still no Surface Go 2, but it has been sold out recently which points to a version update.
An online retailer listed a placeholder for a black Type Cover for Surface Go 2.
As for the Surface Book 3, there were sightings of a 127W Surface Connect Power Supply.
Other accessories have started popping up online as well like a Surface Dock 2 and Surface USB-C Travel Hub.
Even the Surface Earbuds have showed up in listings.