QSFP+ 40G HPE ( H3C ) 40Gigabit Ethernet, coding as HPE ( H3C ) JG661A also compatible ^^ 40GBASE-LR440G QSFP+ transceiver module, 40Gbps, single mode, 1310nm, CWDM4, 10km, LC duplex connector, Hot Pluggable, support DOM ^^ Protocols SATA/SAS3, IEEE 802.3 ba, QSFP MSA Compliant ^^ 3 WARRANTY30-Days Free-returned, 65-Days Free-replacement, 5-Years Free-maintenanceProvide customized services. ^^ CustomizationFibermall supports regular custom service for your options