Cisco - QSFP+ Transceiver Module - 100 Gigabit Ethernet - QSFP-100G-LR4-S= Now: $11,267.41 View Product
Cisco 40GBASE-LR4 QSFP+ LC single-mode - up to 6.2 miles Module for SMF - QSFP-40G-LR4-S= Now: $4,356.42 View Product
Tripp Lite Cisco-Compatible QSFP-40G-LR4 QSFP+ Transceiver - 40GBase-LR4. Singlemode LC. N286-40G-LR4 Now: $873.11 View Product