Features: 4 CWDM lanes MUX/DEMUX design Cooled CWDM DFB transmitter Up to 11.2Gbps per channel bandwidth Aggregate bandwidth of > 40Gbps Duplex LC connector Compliant with 40G Ethernet IEEE802.3ba and 40GBASE-LR4 Standard and OTU3 for line rate of 43Gbps QSFP MSA compliant Up to10km transmission Compliant with QDR/DDR InfiniBand data rates Single +3.3V power supply operating Built-in digital diagnostic functions RoHS Compliant Part Applications: Rack to rack Data centers Switches and Routers Metro networks Switches and Routers 40G BASE-LR4 Ethernet Links