QSFP-40G-LR4-S
QSFP 40GBASE-LR4 Trnscvr Mod, LC, 10km, Enterprise-Class.
The Cisco 40GBASE QSFP (Quad Small Form-Factor Pluggable) portfolio offers customers high-density and low-power 40 Gigabit Ethernet connectivity options for data center, high-performance computing networks, enterprise core, and distribution layers applications.