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

The BlueOptics Fiber Optic Transceiver CBO QSFP28-100G-CWDM4 100G CWDM4 is a compact QSFP28 module that enables 100 Gbps optical links using coarse wavelength division multiplexing (CWDM4). It supports high-density server, switch and data center interconnects with a hot-pluggable QSFP28 form factor. Intended for short-to-medium reach CWDM4 deployments, the transceiver provides a standardized optical interface for scalable uplinks and aggregation links over single-mode fiber.

Advantages

This 100G CWDM4 transceiver combines a small QSFP28 footprint with low power consumption and industry-standard optical interfaces, enabling efficient use of switch port density. The module supports CWDM4 wavelength multiplexing to carry 100 Gbps over four CWDM channels, reducing fiber-count requirements compared with parallel optics. Hot-pluggable design simplifies installation and replacement without shutting down host equipment. Compatibility with standard QSFP28 ports and single-mode fiber links makes it suitable for mixed vendor environments.

Suitable for

• Data center uplinks and spine-to-leaf switch connections
• High-density server aggregation and top-of-rack switch links
• Campus backbone links and metropolitan short-to-medium reach optical connections

Key specifications

• Form factor: QSFP28 (hot-pluggable)
• Data rate: 100 Gbps aggregate
• Optical technology: CWDM4 wavelength multiplexing over single-mode fiber
• Reach: short-to-medium reach single-mode fiber (CWDM4 standard distances)
• Connector type: LC duplex (typical for CWDM4 modules)
• Power consumption: low-power QSFP28 class (typical values depend on implementation)

How to use

Install the QSFP28 module into a compatible QSFP28 port on a switch, router or network host while the device is powered on — the hot-pluggable design permits insertion and removal without powering down the system. Use LC duplex single-mode fiber patch cords to connect to the remote CWDM4-compatible transceiver. Ensure correct mapping of transmit and receive lanes and verify link status via the host device management interface. Follow vendor instructions for module handling, electrostatic discharge precautions and port configuration (speed and encoding settings) where applicable.

Recommendations

For reliable operation, use single-mode fiber rated for CWDM wavelengths and maintain clean LC connector endfaces. Confirm that both ends of the link support CWDM4 and QSFP28 optical parameters, and verify distance and loss budgets for your specific deployment. Monitor port diagnostics (if available) to track optical power and temperature, and replace modules following manufacturer handling guidelines to avoid damage.