HP Compatible J4859C - 1000BASE-LX SFP Transceiver Networking Type: Transceiver module| Device Type: Transceiver| Form Factor: Plug-in module| Cabling Type: Ethernet 1000Base-LX| Data Transfer Rate: 1 Gbps| Connectivity Technology: Wired| Interfaces: Ethernet 1000Base - LC| Max Transfer Distance: 6.21 Mil(s)| Features: Full duplex capability| Width: 0.60 Inch| Depth: 2.20 Inch| Height: 0.50 Inch| Data Link Protocol: Gigabit Ethernet Third Party; 100% Compatible