What is the Cyan FTLC1183SDNL-CY?
The Cyan FTLC1183SDNL-CY is a SFP+ optical transceiver, listed by the manufacturer as "280-0339 / 100G-LR4 MULTI-RATE CLASS1 Cyan Compatible 10G SFP+, 10GBASE-SR, 850 nm, 300m MMF LC, DDM, E-Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.