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Part Number: C9300X-12Y-E
Description: Catalyst 9300 12-port 25G/10G/1G SFP28 with modular uplinks, Network Essentials
Category: Switches
15+ Years of Proven Excellence
Delivering reliable IT hardware solutions since 2009.
Same-Day Shipping
On all on-hand orders placed before 2 pm CST.
Limited Lifetime Warranty
You’ll find warranty coverage on the majority of our hardware.*
Terms & Conditions*
The Cisco C9300X-12Y-E represents a significant advancement in enterprise switching technology as the first optimized platform designed specifically for high-speed network deployments. As part of the Cisco Catalyst 9300 Series, the C9300X-12Y-E integrates advanced hardware with innovative software capabilities to enable customer revenue growth through improved network responsiveness. The C9300X-12Y-E features 12 ports of high-speed fiber connectivity, providing exceptional bandwidth for mission-critical applications and new business services.
With local stackable switching bandwidth of up to 480 Gbps, the C9300X-12Y-E maintains consistent performance even as traffic volumes increase. This stackable high-speed fiber platform serves as a foundational building block for enterprise network operations, supporting the full range of campus and site connectivity requirements. The C9300X-12Y-E’s switching capacity enables organizations to deploy new edge connectivity solutions that span both wired and wireless networks with consistent policy enforcement.
The C9300X-12Y-E implements Cisco’s lead enterprise architecture for security, incorporating hardware-anchored secure boot and secure unique device identification that establish a foundation of trust from initial deployment. Through integration with the Cisco Identity Services Engine, the C9300X-12Y-E enables more secure access control based on contextual factors including user identity, device type, and location. Advanced access control lists provide granular traffic filtering without compromising the C9300X-12Y-E’s forwarding performance.
When deployed with the Cisco DNA Advantage license, the C9300X-12Y-E enables secure connections to cloud resources through integration with Secure Internet Gateway services. The C9300X-12Y-E supports sophisticated security mechanisms that maintain protection across distributed environments while simplifying management. By combining security capabilities directly in the network fabric, the C9300X-12Y-E reduces complexity while improving threat visibility and response capabilities across physical and virtual infrastructure.
The C9300X-12Y-E offers the most flexible uplink architecture in its class, with options for fixed or modular uplinks to adapt to diverse network designs. Cisco StackPower technology in the C9300X-12Y-E enables power resiliency by sharing power across multiple switches, eliminating single points of failure. The C9300X-12Y-E supports multiple flexible deployment scenarios including traditional campus, Software-Defined Access (SD-Access), and data center edge applications.
Organizations can deploy the C9300X-12Y-E across various network domains from campus access to data center domains, maintaining operational consistency through uniform management interfaces. The power supply options for the C9300X-12Y-E include redundant configurations that ensure continuous operation even during component failures. With its comprehensive feature set and adaptable design, the C9300X-12Y-E simplifies customer networks by reducing the number of specialized elements required for enterprise connectivity.
The C9300X-12Y-E features a programmable architecture that frees network operators from repetitive network configuration tasks through powerful automation capabilities. With on-box Python scripting, the C9300X-12Y-E can execute custom logic directly on the switch without external servers, enabling streamlined operations. The C9300X-12Y-E’s modern operating system supports containers, allowing it to host applications directly on the switch for enhanced functionality.
Network administrators can leverage the C9300X-12Y-E’s programmable interfaces to automate campus device rollouts, ensuring consistent configuration and reducing deployment time. The C9300X-12Y-E integrates with Cisco ThousandEyes network monitoring, providing detailed visibility into application performance and network behavior. By combining programmability with comprehensive monitoring, the C9300X-12Y-E offers a valuable and flexible way to manage enterprise infrastructure that adapts to changing business requirements.
The Cisco C9300X-12Y-E features a powerful hardware platform engineered for reliability and performance in demanding enterprise environments:
| Feature | Specification |
| Form Factor | 1RU |
| Dimensions (H x W x D) | 1.73 x 17.5 x 17.5 inches (4.4 x 44.5 x 44.5 cm) |
| Weight | 15.0 lbs (6.8 kg) |
| Access Ports | 12 x 1/10/25G SFP/SFP+/SFP28 ports |
| Uplink Module Options | Modular network modules supporting 1G to 100G interfaces |
| Stacking Bandwidth | 480 Gbps |
| Switching Capacity | 600 Gbps |
| Forwarding Rate | 445.3 Mpps |
| System DRAM | 16 GB |
| Flash Memory | 16 GB |
| External USB | 1 USB 3.0 Type A port |
| Max Stacking Units | 8 |
| Power Supply | 1100W AC (PWR-C1-1100WAC) |
| Redundant Power Supply | Optional second power supply for power redundancy |
| StackPower Cables | CAB-SPWR-30CM or CAB-SPWR-150CM |
| Mean Time Between Failures | 330,000 hours |
The C9300X-12Y-E leverages Cisco’s latest ASIC technology, providing micro-engine capabilities that support advanced functions like hardware-based Flexible NetFlow without compromising forwarding performance. With support for accurate clock synchronization through IEEE 1588, the C9300X-12Y-E meets the precise timing requirements of time-sensitive applications. The C9300X-12Y-E’s hardware architecture enables delivering flow collection at scale while maintaining consistent low-latency performance.
The C9300X-12Y-E runs Cisco IOS XE, a modern operating system that provides a comprehensive set of networking features:
| Feature Category | Key Capabilities |
| Layer 2 | 802.1Q VLANs, Private VLANs, Spanning Tree Protocol enhancements |
| Layer 3 | Static Routing, RIP, EIGRP Stub, OSPF (Limited), PIM-SM/SSM |
| IPv6 | Dual stack support, First Hop Security, DHCPv6 Guard |
| High Availability | SSO, GIR, NSF, ISSU*, Stackwise-480 |
| Security | 802.1X, MACsec-128, Control Plane Policing |
| SD-Access | Limited Fabric Edge functionality (upgradable) |
| QoS | 8 queues per port, policing, shaping, prioritization |
| Management | SNMP, CLI, NETCONF (Limited), Syslog |
| Automation | Basic Scripting Support, Zero-Touch Provisioning |
| Virtualization | Limited VRF support, Port Address Translation |
The C9300X-12Y-E includes the Network Essentials license as standard, with the option to upgrade to Network Advantage for advanced infrastructure features. Cisco makes infrastructure software easier to manage with perpetual licenses, while value-added software services are available through subscription licensing. The C9300X-12Y-E receives ongoing software updates including critical bug fixes and security patches to maintain optimal performance and protection.
The C9300X-12Y-E delivers enterprise-class performance suitable for demanding campus deployments:
| Performance Metric | Capability |
| MAC Address Table | 32,000 entries |
| IPv4 Routes | 32,000 (with Network Essentials), 80,000 (with Network Advantage) |
| IPv6 Routes | 16,000 (with Network Essentials), 40,000 (with Network Advantage) |
| Multicast Routes | 8,000 (with Network Essentials), 16,000 (with Network Advantage) |
| QoS ACLs | 5,000 |
| Security ACLs | 5,000 |
| VLANs | 4,094 |
| SVI Interfaces | 1,000 (with Network Essentials), 4,094 (with Network Advantage) |
| Total Switched Ports | 96 (with max 8-switch stack) |
| Jumbo Frame Support | 9198 bytes |
| Virtual Interfaces | 1,000 (with Network Essentials), 4,000 (with Network Advantage) |
The C9300X-12Y-E provides the processing capability required for high-density environments with substantial network scale requirements. When deployed in a data stack configuration, the C9300X-12Y-E maintains consistent performance through its dedicated stacking infrastructure, unifying the entire switching structure into a single logical device. The C9300X-12Y-E’s forwarding capabilities ensure deterministic performance for latency-sensitive applications while supporting comprehensive security and monitoring functions.
The C9300X-12Y-E offers specific advantages compared to other models in the Cisco Catalyst 9300 Series:
| Feature | C9300X-12Y-E | C9300X-24Y-E | C9300-24T-E |
| Form Factor | 1RU | 1RU | 1RU |
| Access Ports | 12 x 25G SFP28 | 24 x 25G SFP28 | 24 x 1G Copper |
| Max Port Speed | 25G | 25G | 1G |
| Switching Capacity | 600 Gbps | 1.2 Tbps | 208 Gbps |
| System Memory | 16 GB | 16 GB | 8 GB |
| Stack Capability | Yes | Yes | Yes |
| Use Case | Compact High-Speed | High-Density High-Speed | Standard Access |
The C9300X-12Y-E is an optimized platform for environments requiring high-speed connectivity in a more compact port configuration. While the C9300X-24Y-E provides twice the port density, the C9300X-12Y-E offers the same performance per port in a more cost-effective package for appropriately sized deployments. As part of the Catalyst 9300 Series switches, the C9300X-12Y-E maintains backward compatible management and operational features with existing deployments while providing enhanced performance capabilities.
The C9300X-12Y-E achieves cost-effectiveness through its optimized 12-port high-speed design that provides precisely the right capacity for mid-sized deployments without the expense of underutilized ports. Its flexible licensing model allows organizations to start with Network Essentials and upgrade to Network Advantage only when advanced features are required, aligning expenses with actual business needs. The C9300X-12Y-E’s programmable architecture and automation capabilities reduce operational expenses by streamlining configuration tasks and enabling one management system to control the infrastructure efficiently.
The C9300X-12Y-E supports all standard networking protocols including Spanning Tree Protocol variations, ensuring seamless integration with existing switching infrastructure regardless of vendor. Its flexible deployment modes allow the C9300X-12Y-E to function in traditional switching roles immediately while providing a migration path to Software-Defined Access as organizational readiness evolves. The C9300X-12Y-E can load system images and configurations from external USB storage, simplifying migration from legacy equipment and enabling rapid deployment in environments with limited network connectivity.
The C9300X-12Y-E’s 25G port capabilities provide substantial bandwidth headroom for evolving application requirements, particularly for data-intensive workloads and new edge connectivity scenarios requiring high throughput. Its ability to host containers enables organizations to deploy network-integrated applications directly on the switching infrastructure, supporting emerging compute models without additional specialized equipment. The C9300X-12Y-E’s programmable architecture supports ongoing feature evolution through software updates, ensuring the platform can adapt to new business services requirements throughout its operational lifecycle.
The C9300X-12Y-E implements comprehensive redundancy through options for dual power supplies and Cisco StackPower technology that enable power resiliency by sharing resources across stacked switches. When deployed in stack configurations, the C9300X-12Y-E maintains network operations even if individual switches fail, with traffic automatically redirected through remaining stack members without service interruption. The C9300X-12Y-E’s sophisticated quality of service mechanisms ensure that critical application traffic maintains priority during congestion or partial failures, preserving essential business functions even under challenging network conditions.
Organizations should carefully evaluate their fiber infrastructure requirements, as the C9300X-12Y-E exclusively uses SFP/SFP+ connectors rather than fixed copper interfaces, necessitating appropriate optical transceivers for various connection speeds. When implementing stacking, proper planning for StackPower cables and stacking bandwidth connections is essential to create resilient interconnections that maximize redundancy benefits. IT teams should invest in familiarization with the C9300X-12Y-E’s programmability features and automation capabilities to fully leverage the platform’s operational efficiencies, particularly when integrating with cloud service providers or implementing SD-Access architectures.
At Network Republic, our end-user accounts are covered by a 1-Year Warranty on all hardware—whether New, New Open Box, New Pull, Refurbished, or Refurbished by Manufacturer —from the date of delivery. This warranty covers hardware defects under normal use and allows for repair, replacement, or in-house credit at our discretion.
For resellers and wholesale purchases, we offer a 30-Day Warranty limited strictly to functional issues or defects upon arrival, including dead-on-arrival (DOA) items; it does not apply to problems arising after prolonged use. Resellers are responsible for inspecting and testing products within the 30-day window. This warranty excludes accidental damage, misuse, cosmetic wear, third-party modifications, and software-related issues unrelated to hardware failure. Check out our full warranty policy here.
Software licenses are not covered under the standard return and warranty policies and need to be activated on the hardware within 7 days of receipt. Any issues need to be reported immediately, within 10 days, so we can issue an exchange. Under no circumstances will refunds be issued for software licenses.
Our team of professionals are experts in networking hardware configurations and can assist you at any time during your purchasing process. We always recommend great price-performance alternatives based on current market price and availability. In need of assistance or looking for a specific part number? Request a quote today or chat with one of our IT specialists.

