Overview: Cisco Nexus N9K-C9332D-GX2B
The Cisco Nexus N9K-C9332D-GX2B is a high-performance, energy-efficient, 1-Rack-Unit (1RU) fixed-configuration data center switch engineered for high-density spine-leaf deployments. Delivering 25.6 Tbps of bidirectional bandwidth and a forwarding rate of 4.17 bpps, it is built to accommodate modern scale-out fabrics, cloud-scale workloads, and demanding AI infrastructure. The switch comes equipped with 32 fixed 400G QSFP-DD ports and 2 fixed 1/10G SFP+ ports. For enhanced security and investment protection, the last 8 ports support wire-rate MACsec and Cloudsec encryption, while flexible breakout options across all 400G ports ensure backward compatibility and seamless granular scaling within either Cisco ACI or standalone Cisco NX-OS environments.
Technical Specifications
Performance & Architecture
| Metric | Specification |
| Form Factor | 1 Rack Unit (1RU) Fixed Switch |
| Switching Capacity (Bandwidth) | 25.6 Tbps |
| Forwarding Rate | 4.17 bpps |
| System Memory (RAM) | 32 GB |
| Storage Capacity | 128 GB SSD |
| Deployment Environments | Cisco ACI Mode or Standalone Cisco NX-OS Mode |
Port Configuration & Connectivity
| Port Type | Quantity / Details |
| Fixed 400G QSFP-DD Ports | 32 (Supports native 400G, 200G, 100G, and 40G transceiver modules) |
| Breakout Support | Allows 4x10G, 4x25G, 4x50G, 4x100G, and 2x200G splits per port |
| Fixed SFP+ Ports | 2 ports (1/10 Gbps) |
| Hardware Encryption | Wire-rate MACsec & Cloudsec on the last 8 ports (Ports 25 to 32) |
| Management & Console | 1x 10/100/1000BASE-T port, 1x SFP port, 1x RS-232 console port, 1x USB port |
Power & Thermal Dissipation
| Parameter | Specification |
| Power Supply Configuration | 2 hot-swappable slots (1 required for operation, 1 for 1+1 redundancy) |
| Supported Power Modules | 1500W AC (Intake/Exhaust) or 1100W DC (Intake) |
| Typical Power Draw | 638 W |
| Maximum Power Draw | 1442 W |
| Maximum Heat Dissipation | 4,920 BTUs per hour |
Physical & Environmental
| Parameter | Specification |
| Dimensions (H x W x D) | 1.72 x 17.3 x 23.9 inches (4.4 x 43.9 x 60.8 cm) |
| Chassis Weight | 28 lbs (12.7 kg) |
| Fan Modules | 6 hot-swappable dual-rotor fan modules (5+1 redundant scheme) |
| Airflow Directions | Port-side intake (burgundy) or Port-side exhaust (blue) |
| Operating Temperature | 32° to 104°F (0° to 40°C) |
