Cisco C9500X-28C8D-A | Catalyst 9500X 36-Port Switch, 28x 100G QSFP28, 8x 400G QSFP-DD

The Cisco Catalyst C9500X-28C8D-A is a next-generation enterprise core and aggregation switch built on the Cisco Silicon One Q200 ASIC. Featuring 28 non-blocking 100G QSFP28 ports and 8 non-blocking 400G QSFP-DD ports, it delivers up to 12.8 Tbps switching capacity with deep buffering and programmable pipeline capabilities. Ideal for high-performance campus cores and edge deployments requiring multi-gigabit scalability.

Cisco Silicon One Q200 ASIC with programmable P4 pipeline for next-generation network programmability
- Non-blocking architecture with 28x 100G QSFP28 and 8x 400G QSFP-DD ports
- Deep packet buffering: 80 MB dedicated low-latency buffer plus 8 GB on-chip High Bandwidth Memory
- Virtual Output Queue (VOQ) architecture optimized for edge deployments
- Full Layer 3 routing with IPv4, IPv6, and multicast support
- Advanced security: 256-bit MACsec line-rate encryption, TrustSec, MACSec
- VXLAN, EVPN, and Flexible NetFlow for modern network architectures
- MPLS Layer 2/Layer 3 VPN, Multicast VPN (MVPN), and NAT support
- Cisco StackWise Virtual for network virtualization and high availability
- Precision Time Protocol (PTP IEEE 1588v2) with sub-microsecond accuracy
- Application hosting with 2x 10G KR ports for Cisco ThousandEyes Enterprise Agent
- Dual redundant 1+1 power supplies with flexible airflow options
- Cisco DNA Center and Meraki cloud monitoring compatibility
- Software-Defined Access (SD-Access) with VRF-aware LISP and host tracking
- In-Service Software Upgrade (ISSU), NSF/SSO for zero-downtime maintenance

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.