StarTech.com Dell EMC 3CSFP91 Compatible QSFP+ Module - 40GBASE-ER4 - 40GE Gigabit Ethernet QSFP+ Single Mode Fiber (SMF) - 40 km DDM - Dell EMC 3CSFP91 Compatible QSFP+ - 40GBASE-ER4 40 Gbps - 40GbE Module - 40GE Gigabit Ethernet QSFP+ 1270nm to 1330nm S
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