QSFP40GSR4ST - StarTech.com Cisco QSFP-40G-SR4 Compatible QSFP+ Module 40GBASE-SR4, 40GbE Multimode Fiber MMF Optic Transceiver, 40GE Gigabit Ethernet MPO Connector, 150m, 850nm, DDM, Cisco Firepower

Lifetime Warranty (QSFP40GSR4ST) - QSFP+ transceiver module (equivalent to: Cisco QSFP-40G-SR4) - 40GbE - 40GBASE-SR4 - MPO multi-mode - up to 150 m - 850 nm