Fiber Optic Transceiver CBO QSFP28-100G-CWDM4 100G CWDM4

The BlueOptics Fiber Optic Transceiver CBO QSFP28-100G-CWDM4 100G CWDM4 is a QSFP28 form-factor module designed for 100 Gigabit Ethernet links over single-mode fiber. It supports coarse wavelength division multiplexing (CWDM4) to carry four lanes of 25 Gbit/s each on separate wavelengths, enabling consolidated 100G transmission in a compact, hot-pluggable package. The transceiver is intended for use in high-density network environments where long-reach fiber interconnects are required.

Advantages

This QSFP28 module offers a compact QSFP28 interface with hot-pluggable operation for quick deployment and maintenance without powering down equipment. By using CWDM4 multiplexing it reduces fiber count requirements while maintaining 100G capacity, making it suitable for dense data center and enterprise aggregation. The module is optimized for single-mode fiber and longer link distances compared with short-reach optics, providing stable optical performance for inter-rack and inter-data-center links.

Suitable for

• 100 Gigabit Ethernet links between switches and routers
• Data center interconnects and spine-leaf architectures
• Enterprise backbone connections and aggregation ports
• Single-mode fiber long-reach fiber links

Key specifications

• Form factor: QSFP28
• Data rate: 100 Gbit/s (4 × 25 Gbit/s lanes)
• Optical technology: CWDM4 (coarse wavelength division multiplexing)
• Fiber type: Single-mode fiber (SMF)
• Connector interface: MPO/MTP multi-fiber connector
• Operation: Hot-pluggable
• Typical application: Long-reach 100G links in data center and enterprise networks

How to use

Install the module into a compatible QSFP28 slot on a switch, router, or optical transponder following the host equipment manufacturer’s instructions. Use an MPO/MTP-terminated single-mode fiber cable and ensure correct polarity and cleanliness of connectors before mating. After insertion, configure the host port for 100G operation as required; the module supports standard QSFP28 management interfaces for diagnostics. Monitor link status and optical parameters through the host system to verify proper operation.

Recommendations

Ensure connectors and fiber are clean and free of debris before installation, and verify compatibility with the host equipment model and firmware. Use appropriate fiber patching and multiplexing infrastructure to realize CWDM4 channel routing, and observe manufacturer environmental limits for temperature and humidity to maintain optical performance and reliability.