Startech 3CSFP91 1000BaseSX SFP Transceiver- you get 4

HP 3CSFP91 1000BaseSX SFP Transceiver The 3CSFP91ST is an HP 3CSFP91 compatible fibre transceiver module that has been designed, programmed and tested to work with HP brand switches and routers. It delivers dependable 1 GbE connectivity over fibre cable, for 1000BASE-SX compliant networks, with a maximum distance of up to 550 m (1804 ft). Technical Specifications: Wavelength: 850 nm Maximum Data Transfer Rate: 1.25 Gbps Type: Multi Mode Fibre Connection Type: LC Connector Maximum Transfer Distance: 550 m (1804 ft) MTBF: 3,381,761 hours Power Consumption: Less than 1 Watt Digital Diagnostics Monitoring (DDM): Yes This SFP fibre module is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions. StarTech.com SFPs All StarTech.com SFP & SFP+ transceiver modules are backed by a lifetime warranty and free lifetime multilingual technical support. 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.