This Cisco compliant CWDM-SFP-1610 is a 1.25GBASE-CWDM SFP 1610nm 80km   transceiver module. The CWDM-SFP-1610 transceiver module provides a low   cost high-performance connection. The CWDM-SFP-1610 is 100% compatible   with all Cisco series switches and modules which support SFP   transceivers.
   
   Features & Specifications
    -  Form Factor: SFP
-  Device Type: Transceiver module
-  Interface (Bus) Type: Plug-in module
-  Connectivity Technology: Wired
-  Application: 1.25GBASE-CWDM
-  Data Transfer Rate: 1.25Gbps
-  Wavelength: 1610nm
-  Max Distance: 80km
-  Fiber Type: SMF
-  Connector: Duplex LC
-  DDM: Without DDM
-  Operating Temperature: 0~70 °C
-  Compliant with MSA SFP Specification