These are something we now see quite frequently. Sometimes, these are a dedicated room, in other cases, these are an open planned space to allow staff to gather and collaborate in a small area. 

Usually kitted out with a smaller screen, EG. 50” and a local cable input to allow uses to connect easily to the screen. Screen with power on and off as and when the laptop is connected. 

The benefits of breakout spaces is that groups of staff can get together quickly and with a simple plug in there is no complicated technology to get the discussion going quickly.