CPAK-100G-LR4 Genuine Cisco CPAK-100G-LR4 100GBASE-LR4 CPAK for SMF

Cisco CPAK-100G-LR4 - Overview

The CPAK family was Cisco’s proprietary pluggable form factor for 100G optics, offering smaller size and lower power consumption compared to CFP/CFP2 modules. The LR4 variant is optimized for long-reach (10 km) data center and metro connections.

🔧 Key Specifications

• Form Factor: Cisco CPAK (20% smaller than CFP2, ~40% lower power)
• Standard: 100GBASE-LR4 (IEEE 802.3ba compliant)
• Wavelengths: 4 CWDM lanes (1295, 1300, 1305, 1310 nm)
• Reach: Up to 10 km over single-mode fiber (SMF)
• Interface: Duplex LC optical connector
• Data Rate: 100 Gbps (4x 25 Gbps lanes)
• Power Consumption: ~3.5-4.5 W (lower than CFP LR4)
• Applications:
  • Data center interconnect (DCI)
  • Enterprise core and distribution networks
  • Metro aggregation and service provider edge

🧩 Ideal Use Cases

• Data centers needing 100G long-reach connectivity between buildings or sites
• Service providers deploying 100G in metro and aggregation layers
• Enterprises upgrading to 100G in backbone/core networks