What is the MRV Communications SFP-DGD-SX?
The MRV Communications SFP-DGD-SX is a SFP optical transceiver module, listed by the manufacturer as "1000BASE FIBER/ETHERNET SX LC, 550 METER, 850 NM SFP TRANSCEIVER". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.