This is a terminal module from Murr Elektronik, specifically their 7000-08011-6110300 series. This series is designed to be used with their network power supplies, and can be used to monitor, configure and regulate the output voltage via a voltage controller. The terminal module also has a built-in USB connection so it can be easily connected to a PC or other devices. Additionally, the terminal module is IP20-rated, which means it is protected from ingress of objects larger than 12 mm and is suitable for indoor use.