HPE 40G QSFP+ LC ER4 40km SMF Transceiver

The HPE 40G QSFP+ LC ER4 40km SMF Transceiver is a high-performance, long-reach module designed for modern data networking. Built to power 40 Gigabit Ethernet links, this transceiver delivers reliable, scalable uplinks between core switches, data-center interconnects, and rugged campus networks. With 40GBase-ER4 technology, it enables four parallel 10G lanes over a single-mode fiber path, providing a cost-efficient path to higher bandwidth while maintaining compatibility with established optical infrastructure. This hot-pluggable QSFP+ transceiver is ideal for environments that demand robust performance, minimal downtime, and straightforward integration into existing Hewlett Packard Enterprise networking hardware.

• High-density 40GBASE-ER4 performance: The QSFP+ form factor consolidates four 10G lanes into a single module, delivering an aggregate 40 Gbps of bandwidth. This enables scalable connectivity between switches, routers, and storage fabrics, supporting spine-leaf architectures and core-to-core links with ease.
• Long-haul single-mode fiber reach: Engineered for up to 40 kilometers on standard single-mode fiber, this transceiver is suited for data-center interconnects, campus backbones, and service-provider backbones where extended reach reduces the need for repeaters or additional equipment.
• LC duplex fiber connectors for broad compatibility: Equipped with durable LC duplex connectors, it integrates smoothly with common single-mode fiber assemblies used throughout enterprise and data-center networks, simplifying installation and maintenance.
• Plug-and-play, hot-swappable design: The transceiver is designed for seamless insertion into supported switches and routers, enabling quick upgrades and minimal downtime during deployments or capacity expansions.
• Enterprise-grade reliability and compatibility: Built to meet stringent data-center requirements, this module adheres to 40GBASE-ER4 standards and is compatible with a wide range of Hewlett Packard Enterprise networking platforms, ensuring consistent performance across your infrastructure.

Technical Details of HPE 40G QSFP+ LC ER4 40km SMF Transceiver

• Form Factor: QSFP+
• Data Rate: 40 Gbps (40GBASE-ER4)
• Reach / Distance: Up to 40 kilometers on single-mode fiber
• Optical Wavelength: 1310 nm (ER4, four parallel lanes)
• Fiber Type: Single-Mode Fiber (SMF)
• Connector: LC duplex
• Standard Compliance: IEEE 802.3 Clause 40/40GBASE-ER4 style specification for multi-lane Ethernet over SMF
• Environment & Durability: Engineered for data-center-grade operation with reliable performance under typical rack-and-stack conditions

How to Install HPE 40G QSFP+ LC ER4 40km SMF Transceiver

• Verify compatibility: Ensure your switch or router supports 40GBASE-ER4 and that the QSFP+ port is available for upgrade or expansion. Check vendor compatibility lists and firmware requirements to avoid post-install issues.
• Power down or prepare port: If required by your hardware, briefly power down the port or stage the upgrade within a maintenance window to prevent unexpected disruptions.
• Insert the transceiver: Align the transceiver with the QSFP+ port and insert firmly until it clicks into place. Avoid applying excessive force to prevent damage to the module or connector.
• Connect fiber optics: Attach the LC duplex fiber cables to the transceiver’s LC connectors and route the fibers to the corresponding device ports. Use quality SMF cables with proper bend radii and connector cleanliness to ensure optimal performance.
• Power up and verify: Restore power to the equipment and check link status through the device’s management interface. Run basic connectivity tests and, if available, perform a short 40G throughput test to confirm stable operation and correct lane negotiation.

Frequently Asked Questions

• What is the HPE 40G QSFP+ LC ER4 40km SMF Transceiver used for? It is a hot-pluggable optical transceiver designed for 40 Gigabit Ethernet (40GBASE-ER4) over single-mode fiber, enabling long-reach, high-bandwidth links between switches, routers, and storage networks in data centers and campus backbones.
• What type of fiber and connectors does it use? The module uses single-mode fiber with LC duplex connectors, suitable for standard enterprise and data-center fiber layouts. This makes it compatible with common SMF cabling and fiber channel paths used in many networks.
• How far can this transceiver reach? It supports up to 40 kilometers on standard single-mode fiber, providing long-haul connectivity without the need for additional amplification or regeneration in many topologies.
• Is this transceiver compatible with all 40G network gear? The module is designed to meet the 40GBASE-ER4 standard and is intended for use with Hewlett Packard Enterprise networking hardware. Always consult your device’s compatibility matrix to ensure optimal interoperability.