Manufacturer: Cisco Systems Model/Part #: DS-SFP-FC4G-MR Other Model/Part #: DS-SFP-FC4G-MR= Category: Network & Telecommunication » Transceivers (GBIC/SFP) | Cisco Systems DS-SFP-FC4G-MR 10000BASE-LX 1g/2g/4gb/s Medium Wavelength SFP Transceiver Adapter. |