What is the Mikrotik RB5009UPR+S+IN?
The Mikrotik RB5009UPR+S+IN is a SFP+ optical transceiver, listed by the manufacturer as "RB5009UPR+S+IN - RouterBORD 5009UPr+S+IN with Marvell Armada ARMv8 CPU, 1GB DDR4 RAM, 1GB NAND storage, 1x 2.5GLAN, 7x 1GLAN (802.3af/at PoE-Out & PoE-In), 1x SFP+ port, RouterOS L5, metal desktop case, PSU". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.