What is the Zyxelcomms SFP-LX-10-D?
The Zyxelcomms SFP-LX-10-D is a SFP optical transceiver module, listed by the manufacturer as "SFP-LX-10-D - LC 1310NM 10KM (SINGLE-MODE)/550M (MULTI-MODE) GIGABIT TRANSCIEVER". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.