The QSFP-4X10G-LR-S QSFP+ Optical Transceiver Module is designed for use in 40GBASE Ethernet throughput up to 10km over single mode fiber (SMF) using a wavelength of 1310nm via a MTP/MPO-12 connector. Test report of same model or same manufacturer within 24 hours. 11 years of experience providing cost-effective optics and solutions for SMB users. Effectively save 50% or more of your budget compared to other third-party vendors. How to install SFP module? How to remove SFP module? What are the. FS 10GbE SFP+ module solutions provide a wide variety of 10 Gigabit Ethernet connectivity options for data centers, enterprise wiring closets, Internet Service Providers (ISPs) applications.