Optical QSFP Transceiver BlueOptics BO25K13640DIN 40GBASE-ER4 40 km

BlueOptics BO25K13640DIN is a QSFP optical transceiver module compliant with 40GBASE-ER4 standards, designed to deliver 40 Gbps links over single-mode fiber for distances up to 40 km. The module fits QSFP ports and provides long-reach Ethernet connectivity suitable for data center interconnects, campus backbones and carrier optical networks. It supports high-bandwidth transmission while maintaining compatibility with standard QSFP interfaces and 40G Ethernet equipment.

Advantages

The transceiver provides a compact QSFP form factor with long-reach single-mode performance, enabling 40 Gbps transmission over extended distances. It offers interoperability with standard 40GBASE-ER4 systems and simplified integration into existing fiber infrastructure. Passive cooling and standard electrical/optical interfaces reduce installation complexity and support stable operation in typical telecom and data center environments.

Suitable for

• Long-reach 40G links between data center racks or buildings
• Carrier and metro network aggregation where 40 km single-mode reach is required
• Campus backbone connections and high-capacity uplinks
• Replacement or upgrade of QSFP 40G optical modules in compatible switches and routers

Key specifications

• Standard: 40GBASE-ER4 optical Ethernet
• Form factor: QSFP (Quad Small Form-factor Pluggable)
• Data rate: 40 Gbps aggregate
• Fiber type: Single-mode fiber (SMF)
• Maximum reach: up to 40 km on single-mode fiber
• Optical interface: 4-lane wavelength-division multiplexing compatible
• Operating environment: designed for use in telecom and data center equipment

How to use

Install the BO25K13640DIN into a compatible QSFP port on the network switch or router with the device powered down or following the host equipment hot-swap guidelines. Connect single-mode fiber patch cables to the module’s optical interface using appropriate LC connectors or the host adapter specified for QSFP-ER4 optics. Verify link status in the host equipment management interface and confirm correct optical power and diagnostics if available. Follow standard ESD precautions when handling the transceiver and keep protective caps on fiber connectors until the final connection is made.

Usage recommendations

Use single-mode fiber with certified attenuation characteristics and maintain proper connector cleanliness to achieve the specified 40 km reach. Ensure the host equipment supports 40GBASE-ER4 QSFP modules and check optical lane mapping and firmware compatibility when replacing or upgrading modules.