**Full Part Number:** N77-F312CK-26  
**Manufacturer:** Cisco Systems, Inc.
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### **Overview**
The **Cisco N77-F312CK-26** is a high-performance 12-port Ethernet line card designed for the Cisco NCS 7700 Series routers. This line card supports both 10G and 25G Ethernet interfaces, providing flexible and scalable connectivity options for data centers and enterprise networks. Engineered for high-bandwidth and high-density applications, the N77-F312CK-26 enhances the NCS 7700 Series with advanced features, robust performance, and versatile connectivity to meet the demanding requirements of modern networking environments.
### **Key Features**
- **12 x 10G/25G Ethernet Ports:** Provides a high-density, flexible port configuration, supporting both 10G and 25G Ethernet connections to accommodate various network needs.
- **High Performance:** Delivers exceptional performance with high throughput and low latency, ensuring efficient data handling and optimal network performance.
- **Versatile Connectivity:** Supports a range of network applications, from data center interconnects to high-speed enterprise connections, offering the flexibility to adapt to evolving network demands.
- **Advanced Features:** Includes support for advanced Layer 2 and Layer 3 features, such as VLANs, QoS, and multicast, enhancing network functionality and management.
- **Scalability:** Designed to scale with network growth, providing additional capacity and connectivity options for expanding network infrastructures.
- **Reliability:** Built for high availability with robust engineering to ensure continuous operation and minimize downtime in critical network environments.
### **Applications**
- **Data Centers:** Ideal for providing high-speed, high-capacity connections between data center switches, routers, and servers, enhancing overall data center performance.
- **Enterprise Networks:** Suitable for connecting high-bandwidth enterprise applications and services, supporting both 10G and 25G interfaces for flexible deployment.
- **Telecommunications:** Used in telecom networks to deliver high-speed connectivity and support large-scale network operations, meeting the demands of service providers.
- **High-Density Environments:** Perfect for environments requiring a large number of high-speed connections, such as network aggregation and core network deployments.
### **Specifications**
- **Port Configuration:** 12 x 10G/25G Ethernet Ports
- **Compatible Series:** Cisco NCS 7700 Series
- **Performance:** 
  - **Throughput:** High throughput per port
  - **Latency:** Low latency design
- **Form Factor:** Line card for NCS 7700 Series
- **Network Support:** Layer 2 and Layer 3 features
- **Operating Temperature:** 32°F to 104°F (0°C to 40°C)
- **Compliance:** Meets industry standards and Cisco specifications
### **Why Choose Cisco N77-F312CK-26?**
The **Cisco N77-F312CK-26** is an essential component for the Cisco NCS 7700 Series, offering high-performance, scalable, and versatile connectivity for modern networks. With its 12-port configuration and support for both 10G and 25G Ethernet interfaces, it provides the flexibility needed to meet a wide range of networking demands. Cisco’s reputation for innovation and reliability ensures that the N77-F312CK-26 delivers exceptional value, making it an ideal choice for data centers, enterprise networks, and telecommunications environments seeking to enhance their infrastructure with cutting-edge technology.