StarTech.com
StarTech.com Dell EMC 3CSFP91 Compatible QSFP+ Module - 40GBASE-ER4 - Single Mode Fiber (SMF) - 40GE Gigabit Ethernet QSFP+ - LC 40 km - 1270nm to 1330nm - DDM
Mfr. Part# QSFP40GER4ES
CA$1,994.99
CA$1,147.33