Cisco CPAK-100G-LR4 100GBASE-LR4 Standard Single-Mode CPAK Transceiver Module 800-43011-05（V08） The Cisco CPAK-100G-LR4 (Part No. 800-43011-04) is a high-performance 100GBASE-LR4 CPAK optical transceiver, designed for Cisco high-density switches and routers. It adopts WDM technology with four 25Gbps lanes at 1310nm, multiplexing them into a single pair of single-mode fibers to achieve 100Gbps transmission up to 10km. Equipped with a standard LC duplex connector, it fully complies with IEEE 802.3ba standards. Factory-calibrated by Cisco, it provides stable, cost-effective 100G long-reach transmission for enterprise backbones, data center interconnections, and metro aggregation networks.
Part Number
800-43011-04(V08)
Model / Product Code
CPAK-100G-LR4
Data Rate
100 Gbps (4 x 25G lanes)
Power Consumption
< 6.7 W maximum at 70°C
TX Power (per lane)
Max: +4.5 dBm | Min: -4.3 dBm
RX Power (per lane)
Max: +4.5 dBm | Min: -10.6 dBm
Operating Temperature
0°C ~ 70°C
Typical Applications - Enterprise Campus Network 100G Backbone Links up to 10km
- Data Center Interconnect (DCI) Medium-Reach Links
- Service Provider Metro Network 100G Aggregation Links
- Cisco CPAK-port Switch/Router 100G Uplink Ports
- High-Capacity Enterprise and Metro Network Upgrades
Product Highlights
1.Standard-Compliant 100GBASE-LR4 Coexistence
- Fully complies with IEEE 802.3ba standards, ensuring universal interoperability and stable, cost-effective 100G long-reach transmission across standard 100GBASE-LR4 interfaces.
2.Efficient 4-Lane WDM Technology - Adopts advanced wavelength division multiplexing (WDM) technology with four 25Gbps lanes at the 1310nm band, multiplexing them into a single pair of single-mode fibers to achieve massive 100Gbps throughput.
3.Reliable 10km Long-Reach Transport - Specially engineered for high-performance single-mode fiber (SMF) links up to 10 kilometers, making it the premier industry-standard choice for enterprise backbones, data center interconnections (DCI), and metro aggregation networks.
4.Universal LC Duplex Connector - Equipped with a standard LC duplex connector that runs on a single fiber pair. This eliminates the need for complex, high-core MPO infrastructure, significantly simplifying fiber patch cord deployment and reducing cabling costs.
5.Cisco-Validated Interoperability - Dedicated and factory-calibrated by Cisco for high-density switches and routers. It provides seamless plug-and-play operation, ensuring excellent signal integrity and simplifying late-stage network management.
6.Advanced CPAK Green Power-Saving - Leverages the compact CPAK form factor to drastically lower power consumption by up to 45% compared to traditional CFP2 modules (maximum power consumption $< 6.7\text{W}$), saving valuable OPEX for green data centers.