40GBASE-LR4 QSFP+ TRANSCEIVER FOR EXTREME NETWORKS

Axiom 40GBASE-LR4 QSFP+ Transceiver for Extreme – 10320 – For Optical Network, Data Networking – 1 x 40GBase-LR4 – Optical Fiber – 5 GB/s 40 Gigabit Ethernet40 Gbit/s”