JUNIPER - 4-PORT GBE SFP MODULE (EX-UM-4SFP). KEY FEATURES : DEVICE TYPE : EXPANSION MODULE FORM FACTOR : PLUG-IN MODULE INTERFACE (BUS) TYPE : EXPANSION SLOT EXPANSION SLOTS : 4 X SFP (MINI-GBIC) UPLINK NETWORKING : CONNECTIVITY TECHNOLOGY : WIRED CABLING TYPE : ETHERNET 1000BASE-LX DATA LINK PROTOCOL : GIGABIT ETHERNET DATA TRANSFER RATE : 1 GBPS COMPLIANT STANDARDS : IEEE 802.3Z EXPANSION / CONNECTIVITY : INTERFACES : 1 X NETWORK - ETHERNET 1000BASE-LX - SC SINGLE MODE - 2 COMPATIBLE SLOTS : 1 X EXPANSION SLOT CONDITION : NEW FACTORY SEALED. . .