Product Code QSFP-40G-LR4= Description Cisco 40GBASE-LR4 QSFP Module for SMF with OTU-3 data-rate support Dimensions 13. 4 mm Wavelength (nm) 1310 Cable Type SMF Core Size (microns) G. 5 Pull Tab. The Cisco ® 40GBASE QSFP (Quad Small Form-Factor Pluggable) portfolio offers customers a wide variety of high-density and low-power 40 Gigabit Ethernet connectivity options for data center, high-performance computing 00networks, enterprise core and distribution layers, and service provider. FS 40G QSFP+ optical transceiver module solutions offer a full range of QSFP+ modules from 150m to 80km reach, and used for high-density switching, routing and data center applications. Click to get your 40G QSFP+ transceiver modules from nearby warehouses. Trusted by 260K+. Deployment flexibility with 800G (dual 400G), 400G, 100G, 50G, 40G, 25G, 10G or 1G modules. Interoperable with IEEE 40GbE LR4 and LRL4 for easier migrations from 10G to 40G and to single mode fiber 100G. In 25GbE networking environ-ments, the 100 and 400GBE ports can be broken out into four 25GbE lanes by use of either active optical (AOC) or passive copper (DAC) breakout cables. You can utilize 25GbE optics in 100GbE and 400GbE ports using a (QSA28) pluggable adapter.