DWDM-SFP-3425= - Cisco - SFP (mini-GBIC) transceiver module

GigE, 2Gb Fibre Channel - 1000Base-DWDM - SC/PC single-mode - 1534.25 nm - for Cisco 29XX, 39XX; Catalyst 3750, ESS9300; Ethernet Services Plus Extended Transport 20