A QSFP 40G 80km module allows operators to extend link distance significantly while maintaining the QSFP+ form factor, simplifying deployment and preserving compatibility with many 40G switches and routers. They are typically deployed in metro networks, inter-campus backbones, and data center interconnect (DCI) scenarios that require up to 80km. 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. The 40G ZR4 optical module, with its ultra-long-distance transmission capability of 80km, has become a cost-effective choice for bridging 10G and 100G, with ETU-LINK products gaining market favor for their stable performance. This article analyzes its value from three aspects: core technology. GIGALIGHT 40G QSFP+ ZR4 optical transceiver module is designed for long-distance interconnectivity in data centers. It complies with the 40G Ethernet transmission protocol and supports dual rates of 40GE and OTU3. This module features a built-in pair of 4-channel MUX and DEMUX. But what exactly is it, and how does it enable such impressive performance? This guide will demystify the 40G LR4 QSFP+, exploring its technology, advantages, and how to select the best one for your.
