• Cisco N9K-C93400LD-H1 48x 50G SFP56 switch with 4x 400G QSFP-DD
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Cisco

Cisco N9K-C93400LD-H1 | Nexus 9300 48-Port 50G Switch, 4x 400G QSFP-DD

N9K-C93400LD-H1

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Description

The Cisco Nexus 93400LD-H1 is a high-performance 1RU data center switch designed for leaf-role deployments in ACI and NX-OS environments. With 48 50G SFP56 ports and 4 400G QSFP-DD uplinks, it delivers 8 Tbps switching capacity and advanced features including MACsec on all ports, Precision Time Protocol (PTP) Class C timing, and 40MB packet buffer. Built on Cisco Cloud Scale technology, this Layer 3 switch is optimized for AI/ML workloads, 5G networks, and modern data center fabrics requiring VXLAN EVPN, high-speed aggregation, and ultra-low latency.

Features

Cisco Cloud Scale ASIC technology for next-generation data center architecture
- VXLAN EVPN fabric support with MP-BGP control plane
- Cisco ACI integration for software-defined networking
- MACsec encryption on all 48 50G and 4 400G ports
- Precision Time Protocol (PTP) IEEE 1588 Class C timing accuracy
- Synchronous Ethernet (SyncE) for frequency and time distribution
- Comprehensive Layer 2 feature set: VLANs, STP, LACP, VPC
- Layer 3 routing: OSPF, BGP, EIGRP, PIM (license required)
- Advanced QoS and traffic management
- Flow-based telemetry and network analytics
- Programmable with Python, Ansible, Puppet automation
- Modular NX-OS operating system with process isolation
- Hot-swappable redundant power supplies and fan modules
- IPv4 and IPv6 unicast and multicast routing
- Optimized for AI/ML cluster interconnect and storage networks

Warranty

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.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

48x 50G SFP56 ports
- 4x 400G QSFP-DD uplink ports
- Switching capacity: 8 Tbps
- Forwarding rate: 1.557 bpps (billion packets per second)
- Packet buffer: 40MB on-die
- Layer 2 and Layer 3 capable (requires license for L3)
- MACsec support on all ports
- Form factor: 1RU fixed configuration
- Power consumption: Typical 394W, Maximum 765W
- Management: NX-OS, ACI, CLI, SNMP, NETCONF
- Precision Time Protocol (PTP) Class C 1588 timing
- Synchronous Ethernet (SyncE) support
- Supports 10G, 25G, 50G port speeds via optics
- Hot-swappable fan modules and power supplies
- Operating temperature: 32°F to 104°F (0°C to 40°C)

FAQs

Q: What operating systems does the Nexus 93400LD-H1 support?
A: The switch supports both Cisco NX-OS standalone mode and Cisco Application Centric Infrastructure (ACI) mode. It can be deployed in traditional NX-OS VXLAN EVPN fabrics or as a leaf switch in ACI environments.

Q: Does this switch support spine role in ACI deployments?
A: No, the Nexus 93400LD-H1 is designed specifically for leaf-role deployment in data centers and does not support spine role. It is optimized as a top-of-rack (TOR) switch.

Q: What licensing is required for Layer 3 features?
A: The switch includes comprehensive Layer 2 features by default. To enable Layer 3 IP unicast and multicast routing, Cisco DCN (Data Center Network) subscription licenses are required: Essentials, Advantage, or Premier (XF class).

Q: Can the 400G QSFP-DD ports support lower speeds?
A: Yes, the QSFP-DD ports are backward-compatible and support various lower port speeds including 10G, 25G, and 50G through appropriate optical modules.

Q: What makes this switch suitable for AI/ML workloads?
A: The switch features hardware and software capabilities for low-latency performance, advanced telemetry, congestion management, and high-speed 50G/400G connectivity optimized for distributed AI/ML training and inference applications.

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