Cisco C9300X-12Y-E Catalyst 9300X 12-Port 25G SFP28 Switch with Modular Uplinks | Network Essentials

The Cisco C9300X-12Y-E is a next-generation enterprise-class Layer 3 managed switch designed for organizations requiring high-density fiber connectivity, advanced security, and scalable network performance. As part of the Cisco Catalyst 9300X Series, it delivers 12 high-speed 25G/10G/1G SFP28 ports combined with flexible modular uplink options, making it an ideal choice for campus core, aggregation, data center edge, and high-performance enterprise environments.

Built on Cisco's advanced UADP ASIC architecture, the C9300X-12Y-E provides enhanced traffic visibility, hardware-based security, software-defined networking support, and investment protection through StackWise-1T technology. It is specifically optimized for modern workloads including cloud applications, virtualization, Wi-Fi 6/6E deployments, and hybrid enterprise infrastructures.

Whether upgrading from 10G infrastructures or deploying a new 25G-ready network, the Cisco C9300X-12Y-E offers exceptional performance, reliability, and future scalability.

The C9300X-12Y-E delivers twelve 25G SFP28 interfaces, allowing enterprises to transition seamlessly from 10G to 25G networking without replacing existing infrastructure.

Supports modular uplink expansion for 40G and 100G uplink deployments, helping organizations scale bandwidth as network demands increase.

• MACsec encryption
• Secure Boot
• Trustworthy Systems
• Encrypted Traffic Analytics (ETA)
• Advanced Access Control Lists (ACLs)

Create resilient switch stacks with high-bandwidth backplane connectivity, simplified management, and operational continuity.

Designed for Cisco DNA Center automation, policy-based segmentation, and simplified enterprise network operations.

Built for:

• Campus Core Networks
• Enterprise Aggregation Layers
• Data Center Edge Deployments
• High-Density Fiber Access
• Hybrid Cloud Connectivity

Data compiled from Cisco Catalyst 9300X specifications and market references.

Organizations upgrading from traditional 10G access layers often face bandwidth bottlenecks, increasing application traffic, and growing cloud workloads. The C9300X-12Y-E addresses these challenges by offering:

• 2.5× higher bandwidth than standard 10G switches
• Investment protection through modular uplinks
• Seamless integration with Cisco DNA Center
• Advanced security and segmentation capabilities
• Long-term support from Cisco's enterprise ecosystem

Choose the C9300X-12Y-E if:

• You require 25G server connectivity.
• You are building a modern fiber infrastructure.
• You plan to migrate toward cloud or virtualization workloads.
• Future bandwidth growth is expected.

Choose the C9300-24S-E if:

• Your network remains primarily 1G.
• Budget is the primary concern.
• No 25G requirements exist.

The switch includes Cisco Network Essentials licensing, providing advanced Layer 2 and Layer 3 enterprise switching capabilities.

Yes. The SFP28 ports support 1G, 10G, and 25G operation, offering excellent migration flexibility.

Yes. The C9300X-12Y-E supports Cisco StackWise-1T technology for high-availability deployments.

Yes. It is commonly deployed at the data center edge, enterprise aggregation layer, and high-performance campus environments.

The switch supports multiple modular uplink options including high-speed 40G and 100G connectivity depending on deployment requirements.

While some third-party optics may function, Cisco officially recommends validated optics for maximum compatibility and TAC support. Community discussions indicate that unsupported optics can occasionally cause interoperability issues.

• 100% Genuine Cisco Hardware
• Comprehensive Product Testing Before Shipment
• Global Shipping Support
• Technical Configuration Assistance
• Fast Response Sales Team
• Warranty Coverage Available
• Flexible Payment Methods
• Long-Term Enterprise Procurement Support

Our networking specialists can assist with:

• Product Selection
• Network Design Recommendations
• Cisco Licensing Consultation
• Optics Compatibility Verification
• Deployment Planning

The Cisco C9300X-12Y-E is widely deployed in:

• Enterprise Campus Networks
• Financial Institutions
• Government Agencies
• Healthcare Networks
• Educational Campuses
• Cloud Service Providers
• Data Center Edge Infrastructure
• High-Speed Fiber Aggregation Networks

The Cisco C9300X-12Y-E is a powerful enterprise fiber switch that combines 25G connectivity, modular scalability, advanced security, and Cisco's proven Catalyst architecture. For organizations seeking a future-ready platform capable of supporting growing application demands, cloud adoption, and high-speed network transformation, the C9300X-12Y-E represents one of the strongest investments in the Catalyst 9300X portfolio.