Cisco C9300X-12Y-A

High-Performance Fiber-First Switch for Modern Enterprise Networks

The Cisco C9300X-12Y-A is a powerful 1U rack-mountable switch engineered to deliver high-density, high-speed fiber connectivity and advanced Layer-3 networking for enterprise, data center, and campus environments. It features 12 SFP28 ports capable of 1 G/10 G/25 G speeds, offering flexible fiber downlinks ideal for demanding server or aggregation links.
Thanks to its modular uplink architecture, the switch supports uplink modules delivering 40 G or 100 G (via QSFP modules), enabling seamless migration to higher bandwidths as network demands grow — protecting your investment over time.

Built on the UADP 2.0-series ASIC, the C9300X-12Y-A ensures line-rate switching performance while supporting hardware-based encryption (IPsec, MACsec), hardware-accelerated security, and advanced traffic inspection. This makes it ideal for secure campus cores, data centers, or cloud-connected environments requiring strong security and high throughput.
The switch supports full Layer-3 routing and advanced network services (BGP, OSPF, MPLS, VXLAN/EVPN, segment routing, SD-Access), making it suitable for complex network topologies and enabling scalable, high-performance routing across large enterprise or distributed networks.

With stacking support (StackWise-1T) — offering up to 1 Tbps of stacking bandwidth — multiple units can form a single logical switch. This simplifies management, enables high availability, and allows networks to scale horizontally without compromising performance.

In summary, the C9300X-12Y-A delivers a compelling blend of high-density fiber connectivity, flexible uplinks, robust security, powerful routing capabilities, and stackable scalability — making it a strong backbone choice for enterprises seeking future-ready, high-performance network infrastructure.