Product UPC: 658759115744 CISCO - EXPANSION MODULE 10GBPS CHASSIS BASED SWITCHING 10GBASE-SR. KEY FEATURES - DEVICE TYPE : TRANSCEIVER MODULE - FORM FACTOR : PLUG-IN MODULE - INTERFACE (BUS) TYPE : XENPAK - CABLING TYPE : ETHERNET 10GBASE-SR - DATA LINK PROTOCOL : 10 GIGABIT ETHERNET CONDITION : REFURBISHED. AVAILABILITY : IN STOCK. WARRANTY : 30 DAYS.