Cisco CPAK-100G-LR4 CPAK-100G-LR4 Transceiver Module, 10km SMF

Overview

The Cisco CPAK-100G-LR4 Transceiver Module is a high-performance, long reach optical solution designed for data center and carrier environments that require reliable 100 Gigabit Ethernet connectivity over single mode fiber. With a reach of up to 10km, this LR4 (four lane) module enables seamless extension of high speed networks while maintaining low power consumption and a compact form factor that fits into Cisco QSFP28 ports.

Key Features

• Supports 100GBASE-LR4 Ethernet, Fibre Channel and OTN standards
• Long reach of 10km over standard single mode fiber (SMF)
• Four parallel wavelengths (1310nm, 1290nm, 1270nm, 1250nm) for efficient transmission
• Low power draw of less than 4.5W per module
• Hot-swap capable for non-disruptive upgrades
• Built-in digital diagnostic monitoring (DDM) for real-time performance tracking
• Compatible with Cisco Nexus, Catalyst and ASR platforms

Technical Specifications

• Form factor: QSFP28
• Data rate: 100 Gbps (4 x 25 Gbps lanes)
• Transmission distance: 10km SMF (OS2)
• Wavelengths: 1310nm, 1290nm, 1270nm, 1250nm
• Connector type: LC duplex
• Operating temperature: 0 deg to 70 deg C
• Power consumption: max 4.5W
• Compliance: IEC 61753-2, RoHS

Applications

• Data center interconnects requiring high bandwidth over metro distances
• Enterprise backbone links that span campus or regional sites
• Carrier aggregation for high capacity transport networks
• High performance computing clusters needing low latency and high throughput
• Cloud service provider infrastructure for scalable, future-proof connectivity

By delivering 100 Gigabit Ethernet over 10km of SMF, the CPAK-100G-LR4 helps organizations expand their network reach without sacrificing speed or reliability, making it an ideal choice for modern, bandwidth-intensive environments.