StarTech.com Cisco QSFP-40G-SR4-S Compatible QSFP+ Module, 40GBASE-SR4, 40GbE Multimode Fiber MMF Optic Transceiver, 40GE Gigabit Ethernet QSFP+ MPO 100m, 850nm DDM, Cisco Firepower, - Lifetime Warranty (QSFP-40G-SR4-S-ST) - QSFP+ transceiver module (equivalent to: Cisco QSFP-40G-SR4-S) - 40GbE - 40GBASE-SR4 - MPO multi-mode - up to 100 m - 850 nm

The QSFP-40G-SR4-S-ST is a Cisco QSFP-40G-SR4-S compatible fiber transceiver module that has been designed, programmed and tested to work with Cisco brand switches and routers. It delivers dependable 40 GbE connectivity over fiber cable, for 40GBase-SR4 compliant networks, with a maximum distance of up to 100 m (328 ft). This QSFP+ fiber module is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions. StarTech.com offers a wide variety of SFP modules and direct-attach SFP cables, providing the convenience and reliability you need to ensure dependable network performance.