HPE QSFP-DD Module — 400GBASE-FR4 Quad-Channel Transceiver

Meet the HPE QSFP-DD Module, a high-density 400G transceiver designed for next‑generation data centers and enterprise networks. This QSFP-DD FR4 transceiver delivers robust 400G connectivity across eight parallel 50G channels over single‑mode fiber, enabling scalable interconnects up to 2 km with superb reliability. Engineered for plug‑and‑play deployment, it integrates seamlessly into modern switches and server blades, delivering the performance, density, and uptime required for today’s bandwidth-intensive workloads.

• Eight 50G signaling channels in a single QSFP-DD module deliver true 400GBASE-FR4 performance, combining 8x50G lanes to provide a high‑density, scalable solution for data center interconnects.
• Reach up to 2 km on single-mode fiber with FR4 optics, enabling reliable long-haul links between data centers, campus networks, and critical interconnects.
• QSFP-DD form-factor for high density construction supports dense port counts in modern network architectures, reducing rack space and cabling complexity while increasing connect‑state efficiency.
• LC/FR4 optical interface compatibility with standard single‑mode fiber infrastructure ensures broad compatibility with existing fiber plants and LC-based fiber links.
• Reliability and ease of maintenance with hot‑plug capability, built-in diagnostics, and industry‑standard 400GBASE‑FR4 signaling to maximize uptime and simplify device management.

Technical Details of HPE QSFP-DD Module

• Form Factor: QSFP-DD
• Data Rate: 400G (8×50G lanes)
• Number of Lanes: 8
• Signaling Rate per Lane: Up to 50 GBd
• Fiber Type/Interface: Single-Mode Fiber with LC optical interface (FR4)
• Reach: Up to 2 kilometers on SMF
• Optical Standard: 400GBASE-FR4
• Optical Wavelength: Typical 1310 nm (FR4 variant)

How to install HPE QSFP-DD Module

• Prepare the equipment: Ensure you are working in a static-free environment and that the host device supports QSFP-DD modules and 400GBASE-FR4 optics.
• Power and safety: If your system requires power down, follow your device’s standard power-down procedure. Many modern systems support hot‑swap for QSFP‑DD modules; confirm hot‑plug capability for your chassis and slot.
• Remove packaging: Carefully remove the QSFP-DD module from its protective packaging, handling it by the edges to prevent contamination of the optical surfaces.
• Insert the module: Align the module with the QSFP-DD slot, ensuring the connector engages straight. Gently press until the retention latch snaps into place, signaling a secure connection.
• Connect fiber cabling: Attach SMF cables to the LC connectors on the module, observing proper bend radii and avoiding excessive tension. Label and route fibers to minimize crossovers and maintain clean, organized cabling.
• Verify operation: Power up (if required) and check the host device’s management interface for link status, lane health, and 400G link establishment. Use built‑in diagnostics to monitor optical power and temperature for stable operation.

Frequently asked questions

• Q: What is the HPE QSFP-DD Module? A: It is a 400GBASE-FR4 QSFP-DD transceiver that provides 400G connectivity using eight parallel lanes over single‑mode fiber up to 2 km, designed for high‑density data center interconnects.
• Q: How many lanes does it use? A: Eight parallel lanes, each contributing to a total 400G bandwidth (8×50G).
• Q: What fiber type and distance does it support? A: It supports single‑mode fiber (SMF) up to 2 kilometers with LC FR4 optics.
• Q: Is it hot‑swappable? A: Yes. The QSFP-DD form factor is designed for hot‑plug capability in compatible switches and servers to minimize downtime.
• Q: What networks is this module best suited for? A: Ideal for data center interconnects, high‑performance computing, and campus networks that require scalable 400G links with long‑reach SMF connectivity.