What is the Mikrotik RB5009UG+S+IN?
The Mikrotik RB5009UG+S+IN is a SFP+ optical transceiver, listed by the manufacturer as "The ultimate heavy-duty home lab router with USB 3.0, 1G and 2.5G Ethernet and a 10G SFP+ cage". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.