QSFP transceiver BlueOptics BO25K13630D 40GBASE-ER4L 40Gbps 30 km multimode/single-mode

The BlueOptics QSFP transceiver BO25K13630D 40GBASE-ER4L is an optical module for 40 Gbps links with a reach of up to 30 km. Designed for the QSFP form factor, this transceiver supports long-reach single-mode fiber connections and is suitable for data center uplinks, metro and campus interconnects. It provides a standardized electrical and optical interface for insertion into QSFP ports on switches, routers and aggregation devices, enabling high-throughput transport over extended distances.

Advantages

This 40GBASE-ER4L transceiver offers high bandwidth and stable performance over long distances, combining QSFP compatibility with optical components optimized for 30 km single-mode links. Its form factor allows easy hot-swap installation in equipment with QSFP ports, while compliance with the 40GBASE-ER4L specification ensures interoperability with standard networking hardware. The module is suitable for reducing the number of parallel links by aggregating 40 Gbps traffic and for maintaining signal integrity across metro spans.

Suitable for

• Extending 40G uplinks between switches and routers over single-mode fiber
• Long-reach connections in data centers and campus networks
• Metro network trunks and aggregation links up to 30 km
• High-bandwidth interconnects for backbone and edge equipment

Key specifications

• Data rate: 40 Gbps
• Standard: 40GBASE-ER4L
• Reach: up to 30 km over single-mode fiber
• Form factor: QSFP
• Optical interface: long-reach single-mode fiber
• Application: uplinks, aggregation and long-distance interconnects

How to use

Install the transceiver into an available QSFP port on a compatible switch or router, following the host device manufacturer’s hot-swap and ESD handling procedures. Connect single-mode fiber using appropriate LC or MPO adapters as required by the system cabling. Configure link settings on network equipment to enable 40 Gbps operation and verify the optical link status through device management interfaces or diagnostics. Monitor signal quality and error counters during initial commissioning to confirm stable operation.

Recommendations

Use certified single-mode fiber rated for 30 km spans and maintain clean connector endfaces to preserve optical performance. Ensure the host equipment supports 40GBASE-ER4L optics and QSFP transceivers. For installations spanning multiple patches or intermediate connections, account for additional insertion loss and plan for appropriate optical power margins.