Network transceiver module CBO 100G-QSFP28-LR4L-2KM 100 Gbit/s QSFP28 LR4L up to 2 km

CBO 100G-QSFP28-LR4L-2KM is a network transceiver module in a QSFP28 form factor that supports 100 Gbit/s line rate for LR4L optical links. The module is designed to deliver single‑lane aggregated throughput across four wavelengths, providing a standardized 100G interface for switches, routers and optical aggregation equipment. It is intended for deployments requiring extended short‑reach connectivity over single‑mode fiber and supports link distances up to 2 km under appropriate fiber and system conditions.

Advantages

The transceiver offers a compact QSFP28 footprint, enabling high-density port counts in data center and carrier environments while maintaining a 100 Gbit/s aggregated bandwidth. It conforms to LR4L optical link behavior to ensure interoperability with compatible equipment and supports deterministic performance for backbone and uplink applications. Low latency and a standardized electrical interface simplify integration into existing 100G network fabrics.

Suitable for

• Data center uplinks between top-of-rack and aggregation switches
• Enterprise backbone links and campus interconnects
• Aggregation switches and optical line systems requiring 100G LR4L optics
• Short to extended reach single-mode fiber connections up to 2 km

Key specifications

• Form factor: QSFP28
• Nominal data rate: 100 Gbit/s aggregated
• Optical interface type: LR4L (4‑wavelength MPO/LC compatible depending on host).
• Maximum link distance: up to 2 km over suitable single-mode fiber
• Supported media: single-mode fiber (SMF)
• Typical application: 100G uplinks, backbone and aggregation links

How to use

Install the QSFP28 module into a compatible QSFP28 port on a switch, router or transceiver cage following the host vendor’s insertion and hot‑swap recommendations. Ensure the connected fiber type and MPO/LC polarity match the module’s optical interface. After physical installation, verify link status and negotiate the 100G session using the host device’s management interface. Monitor optical power and error counters to confirm the link operates within expected parameters.

Usage recommendations

For reliable operation, use single‑mode fiber with low insertion loss and ensure connectors are clean before mating. Check compatibility with the host equipment’s supported transceiver list and configure appropriate interface settings (speed, FEC if applicable). Keep ambient temperature and power delivery within the host’s specified ranges to maintain performance over extended deployments.