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

The CBO Transceiver QSFP28-100G-CWDM4 is a compact 100G CWDM4 fiber optic module in a QSFP28 form factor, designed for 100 Gigabit Ethernet links over single-mode fiber. It integrates coarse wavelength division multiplexing to transmit four channels over one duplex single-mode fiber pair, enabling efficient use of fiber infrastructure. The module is suitable for deployment in high-density network environments such as data center interconnects, aggregation switches and high-performance routers where reliable 100G optical connectivity is required.

Advantages

This QSFP28 CWDM4 transceiver offers high port density due to the small QSFP28 form factor and supports 100G Ethernet rates, which helps optimize rack space and reduce cabling complexity. CWDM4 multiplexing reduces the number of fiber pairs needed compared with parallel optics while maintaining single-mode reach. The module is compatible with standard QSFP28 slots and is designed for straightforward hot-pluggable operation, facilitating maintenance and rapid replacement in live network environments.

Suitable for

• Data center interconnects and spine-to-leaf links
• High-speed switches and aggregation routers
• Core and distribution layer connections requiring 100G capacity
• Single-mode fiber networks where fiber count optimization is needed

Key specifications

• Form factor: QSFP28
• Data rate: 100 Gigabit Ethernet
• Optical technology: CWDM4 (four-wavelength CWDM)
• Fiber type: single-mode fiber (SMF)
• Connector type: duplex LC
• Wavelengths: four CWDM channels in the specified CWDM4 band
• Hot-pluggable: yes

How to use

Install the QSFP28 module into a compatible QSFP28 port on a switch or router until it seats firmly and the latch engages. Connect the duplex LC single-mode fiber cable to the module, ensuring correct transmit/receive orientation. Configure the network device to recognize and enable the 100G port according to the device's management interface. Monitor link status and diagnostics via the host device; the module supports standard optical monitoring features exposed through the host's management system.