Works as intended with MX Keys MiniArvosana 5/5
I bought the receiver in order to use with MX Keys Mini, as the keyboard is bluetooth connection only out of the box. This led to delay in connection on startup and inability to use it in BIOS. Once I connected with the receiver the connection is instantaneous with turning on the pc and works perfectly as if it was wired.
I have noticed no latency issues and used the keyboard both for gaming (although no high pace fps or fortnite-likes) and office work.
FlanneLee