StarTech.com Dell EMC QSFP-40G-ER4 Compatible QSFP+ Module - 40GBase-ER4Q Fiber Optical Transceiver

TECHNICAL SPECS: 40GBASE-ER4 | 40 Gbps | Single Mode | LC Connector | 1270nm to 1330nm 100% Dell EMC 3CSFP91 COMPATIBLE: Designed, programmed and tested to work with compatible Dell EMC switches and routers to deliver dependable 40GbE connectivity