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) - 40 Gigabit LAN - 40GBASE-SR4 - MPO multi-mode - up to 150 m - 850 nm

The QSFP40GSR4ST is a Cisco QSFP-40G-SR4 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 150 m (492 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.