This Juniper compliant JX-SFP-1GE-SX is a 1000BASE-SX SFP 850nm 550m   transceiver module. The JX-SFP-1GE-SX transceiver module provides a low   cost high-performance connection. The JX-SFP-1GE-SX is 100% compatible   with all Juniper 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: 1000BASE-SX 
-  Data Transfer Rate: 1Gbps
-  Wavelength: 850nm
-  Max Distance: 550m
-  Fiber Type: MMF
-  Connector: Duplex LC
-  DDM: Without DDM 
-  Operating Temperature: 0~70 °C
-  Compliant with MSA SFP   Specification