What is the Optcore OSP1250-3120NCR?
The Optcore OSP1250-3120NCR is a SFP optical transceiver module, listed by the manufacturer as "1.25Gbps SFP LX transceiver, 1310nm, single-mode, 20km reach, LC duplex, DDM". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.