1. Cisco 40GBASE QSFP Modules Cisco offers a wide range of 40GBASE QSFP modules suitable for enterprise core, distribution, and data center networks. These modules are hot-swappable, IEEE 802.3ba compliant, and tested for interoperability on Cisco QSFP 40G ports. Options include SR4 for short-reach multimode fiber and CSR4 for breakout connectivity, supporting high-density and low-power deployment . 2. Ruckus 40GBASE-LR4 QSFP+ The Ruckus OEM 40GBASE-LR4 QSFP+ module is designed for long-reach single-mode fiber deployments (1270 nm), ideal for enterprise uplinks, interconnects, and aggregation paths. It provides predictable optics behavior, fewer intermediate hops, and a disciplined fiber plan, making it suitable for high-uptime enterprise environments . 3. Arista QSFP-40G-LR4-AR-OEM Arista's LR4 OEM module supports up to 10 km over single-mode fiber, using four 10Gbps lanes aggregated to 40Gbps. It is IEEE 802.3ba compliant, compact, and rugged, making it ideal for data center interconnects and backbone networks. OEM optics from Arista are cost-effective and ensure seamless integration with Arista switches . 4. Fibrecross Custom OEM & ODM Solutions Fibrecross provides customizable 40G QSFP+ transceivers for OEM and ODM integration. They support SR4, LR4, and ER4 variants, compatible with multimode and single-mode fibers. Services include branding, firmware customization, and packaging, allowing enterprises to tailor modules to specific network requirements . 5. Alcatel-Lucent Enterprise Optical Solutions Alcatel-Lucent offers high-capacity DWDM optical networking solutions for enterprise WANs and data center interconnects. Their platforms support multiple 10G/40G/100G services, scalable deployment, and power-efficient operation, suitable for enterprise-managed or self-built DCI networks .
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