Transceiver CBO QSFP28-100G-CWDM4 100G CWDM4 QSFP28 fiber optic transceiver

The Transceiver CBO QSFP28-100G-CWDM4 100G CWDM4 QSFP28 fiber optic transceiver is a hot-pluggable optical module designed for 100 Gigabit Ethernet links over single-mode fiber. It implements CWDM4 wavelength division multiplexing across four channels to carry 100 Gbit/s aggregated bandwidth through a single QSFP28 port. The module is intended for use in data center interconnects, campus backbone links and carrier access where compact, high-density optical connectivity and straightforward deployment are required.

Advantages

This QSFP28 CWDM4 transceiver supports 100G data rates while maintaining compact QSFP28 form-factor compatibility, enabling high-density port deployments. The module provides four CWDM channels to transmit aggregated 100 Gbit/s over single-mode fiber, helping to reduce fiber count and simplify cabling compared with multiple parallel optics. It is hot-pluggable for minimal service disruption during installation or replacement and is built to industry-standard electrical and optical interfaces for broad interoperability with compatible switches and routers.

Suitable for

• Data center interconnects and server-to-switch links
• Campus backbone and building distribution links
• Carrier aggregation and metro access connections
• High-density switch and transport platform ports

Key specifications

• Form factor: QSFP28
• Data rate: 100 Gigabit Ethernet
• Optical technology: CWDM4 wavelength division multiplexing (4 channels)
• Fiber type: Single-mode fiber (SMF)
• Connector interface: Duplex LC (or specified system interface for CWDM4 breakout)
• Transmission distance: typical short to medium reach over single-mode fiber (see system compatibility for exact range)
• Hot-pluggable: Yes

How to use

Install the QSFP28 module into a compatible QSFP28 port on a switch or router while the host is powered on; the hot-pluggable design allows insertion and removal without powering down the system. Connect single-mode fiber using the appropriate LC connectors or required breakout cables to the remote end. Verify link status and transmit/receive parameters through the host device management interface. Ensure firmware and transceiver compatibility with the network equipment to avoid forced shutdown or downgrades by vendor lock mechanisms.

Recommendations

For reliable operation, use single-mode fiber of appropriate attenuation and maintain clean connector endfaces. Confirm that the network equipment supports 100G CWDM4 QSFP28 modules and follow vendor guidance for optical power budgets and link distance planning. Replace modules in a static-free environment and handle them by the housing to avoid contamination or damage to the optical interfaces.