N9K-C93400LD-H1 Cisco Nexus 9300 48p 50G SFP56, 4p 400G QSFP-DD

Cisco N9K-C93400LD-H1 – Nexus 93400LD-H1 48x50G + 4x400G Fixed Switch (NX-OS)

The Cisco Nexus N9K-C93400LD-H1 is a compact 1RU fixed switch delivering 48x 50G SFP56 ports and 4x 400G QSFP-DD ports. Purpose-built for 5G, AI/ML, and cloud-scale fabrics, it introduces Precision Time Protocol (PTP) Class C timing accuracy and Synchronous Ethernet (SyncE) for ultra-reliable synchronization. With 8 Tbps bandwidth and 1.557 bpps forwarding, it ensures secure, resilient, and high-performance connectivity for next-generation data centers.

🔧 Key Specifications

• Ports: 48x 50G SFP56 + 4x 400G QSFP-DD
• Breakout Options: 4x 10G, 4x 25G, 4x 100G on 400G ports
• Switching Capacity: 8 Tbps
• Forwarding Rate: 1.557 bpps
• Buffer: 40 MB on-die packet buffer
• Memory: 32 GB DRAM (expandable to 64 GB), 128 GB SSD
• CPU: 4 cores
• Timing: PTP Class C (1588), SyncE support
• Encryption: MACsec capability on all ports
• Reliability: Hot-swappable PSUs and fans, N+1 redundancy
• Power: 1400W AC, 2000W DC/HVDC options
• Dimensions: 1.72 x 17.3 x 19.69 in (1RU)
• MTBF: 224,280 hours

🧩 Ideal Use Cases

• 5G and telco networks requiring precise synchronization for URLLC, IoT, and industrial automation
• AI/ML fabrics needing congestion management, telemetry, and lossless RDMA transport
• Cloud-scale data centers deploying 400G-ready leaf/spine architectures
• Enterprise environments requiring secure MACsec encryption and scalable automation

⚙️ Licensing & Expansion

• Runs Cisco NX-OS with support for VXLAN EVPN, Segment Routing (SR/SRv6), and Cisco ACI integration
• Supports advanced telemetry, programmability (YANG, RESTCONF, NETCONF, gNMI), and automation via Cisco Nexus Dashboard
• Flexible licensing tiers: DCN Essentials, Advantage, and Premier for advanced features