The QSFP28-100G-ZR4-S Module is designed for use in 100GBASE Ethernet throughput up to 80km over single mode fiber (SMF) using a wavelength of 1310nm via duplex LC connectors. Taking BOX+FPC+PCBA separate design, it has great reliability, airtightness and heat dissipation. Huawei 100Gbps QSFP28 Optical Modules deliver high-speed, high-density optical connectivity for data centers, cloud networks, and metro networks. Offering multiple models—QSFP-100G-SR4, QSFP-100G-LR4, QSFP-100G-ER4, and QSFP-100G-CWDM4—each module is optimized for different transmission distances. This Small Form-Factor Pluggable (SFP) module is a compact, pluggable transceiver module that is used in your networking and telecommunication system. It is mainly used for fast data transfer over Ethernet, fiber optic or copper cables, and is also suitable for installation in switches, routers. The FS® 100GBASE Quad Small Form-Factor Pluggable (QSFP28) portfolio offers customers a wide variety of high-density and low-power 100 Gigabit Ethernet connectivity options for data center, high-performance computing networks, enterprise core and distribution layers, and service provider. About the NEO COM NEO-QSFP28-100G-LR13-40 100G LR4 Dual Fiber SFP Module The NEO COM NEO-QSFP28-100G-LR13-40 100G LR4 Dual Fiber SFP Module is a high-performance optical transceiver designed for long-range 100Gbps data transmission. The module converts 4 input channels of 25Gb/s electrical data to 4 channels of LAN WDM optical signals and then multiplexes them into a single channel for 100Gb/s optical. FS offers a growing portfolio of 100G QSFP28 modules.