Dell 40GbE QSFP+ SR4 Optics, MPO, 850nm Wavelength, 100-150meter Reach Tranciever 77KC3

Specifications

Dell 40GbE QSFP+ SR4 Optics, MPO, 850nm Wavelength, 100-150meter Reach Tranciever 77KC3

The Dell 7TCDN transceiver uses 850nm VCSEL (Vertical Cavity Surface Emitting Laser) technology to facilitate high-speed data transmission over multimode fiber. By utilizing a parallel optical interface (MPO), it effectively combines four 10Gbps lanes into a single 40Gbps pipeline, making it an ideal choice for short-reach, high-bandwidth applications such as switch-to-switch links, spine-leaf architecture interconnects, and high-performance server clusters.

Key Performance & Benefits

• High-Speed Throughput: Delivers 40Gbps performance, essential for bandwidth-intensive tasks such as large-scale data replication, virtualization, and high-performance computing (HPC).

• Space-Efficient Design: The QSFP+ form factor provides a high-density solution, allowing for more ports per rack unit compared to traditional setups, which is critical for scaling modern data centers.

• Optimized Short-Reach: Designed specifically for short-distance cabling (up to 150m on OM4 fiber), it is highly cost-effective for internal connectivity within the same room or data center floor.

• Parallel Optics: Features an MPO interface, which allows for stable, synchronized transmission across its four internal channels, minimizing skew and ensuring consistent signal integrity.

• Digital Diagnostics: Supports enhanced Digital Diagnostic Monitoring (DDM) interfaces, providing real-time data on parameters like temperature, laser bias current, and optical output power to help with proactive network maintenance.

• Plug-and-Play Reliability: Being hot-swappable allows for replacement or upgrades without needing to shut down the networking hardware, significantly reducing operational downtime.