40GBASE-LR4Lcompliant with QSFP+ MSA and IEEE 802.3 ba 40GBASE-LR4, standard. Digital diagnostics functions are also available via the I2C interface, 40Gigabit Ethernet, compatible Brocad ecoding as 40G-QSFP-LR4L also ^^ 40G QSFP+LR4L40GBASE-IR4 QSFP+ Optical Transceiver Module supports link lengths of up to 2 kilometers over a standard pair of G. 652 Single-Mode Fiber (SMF) with duplex LC connectors. 4 CWDM Lanes DFB (127112911311 and 1331nm It is interoperable with 40GBASE-LR4 for distances up to 2 kilometers. The operating temperature range is from +10 to +60C, 3.3V power supply ^^ Standard Parameters40G QSFP+ transceiver module, 40Gbps, single mode 1310nm CWDM4, 2km, LC duplex connector, Hot Pluggable, support DOM ^^ 3 Warranty30-Days Free-returned, 65-Days Free-replacement 5-Years Free-maintenance ^^ CustomizationFibermall supports regular custom service for your options.