StarTech.com MSA Uncoded Compatible QSFP+ Module, 40GBASE-LR4, 40GbE Single Mode SMF Fiber Optic Transceiver, 40GE Gigabit Ethernet QSFP+, LC Connector 10km, 1270nm to 1330nm, DDM, 40Gbps - Lifetime Warranty (QSFP40LR4ST) - QSFP+ transceiver module - 40 Gigabit LAN - 40GBase-LR4 - LC single-mode - up to 10 km - 1270-1330 nm - for P/N: PEX40GQSFDPI, PEX40GQSFPI

The QSFP40LR4ST is an MSA compliant fiber QSFP+ transceiver that's designed, programmed and tested to work with 40GBASE-LR4 compatible MSA switches and routers. The QSFP+ transceiver module supports a maximum distance of up to 10 km (6.2 mi) and delivers dependable 40 GbE connectivity over fiber cabling. 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.