QSFP+ 40GBrocade 40Gigabit Ethernet, coding as Brocade 40G-QSFP-LM4 also compatible ^^ 40GBASE-LX440G QSFP+ transceiver module, 40Gbps, single mode and multimode, 1310nm, 4CWDM, OM3/150m /MMF, SMF/2km, LC duplex connector, Hot Pluggable, support DOM ^^ ProtocolsCompliant with QDR/DDR Infiniband data ratesUp to 150m transmission on OM3 multimode fiber (MMF) or 2km transmission on single mode fiber (SMF), IEEE 802.3 ba, MSA Compliant ^^ 3 Warranty30-Days Free-returned, 65-Days Free-replacement 5-Years Free-maintenance ^^ CustomizationFibermall supports regular custom service for your options.