StarTech.com Citrix 3013936-E2 Compatible QSFP+ Module, 40GBASE-SR4, Multi Mode (MMF) Fiber, 40GE Gigabit Ethernet QSFP+, MPO Connector, 100 m, 850nm, DDM, 40Gbps QSFP Plus Transceiver - Lifetime Warranty (3013936-E2-ST) - QSFP+ transceivermodul - 40GbE