Cisco Nexus 9364D-GX2A (N9K-C9364D-GX2A) 64-Port 400G QSFP-DD High-Density Spine Switch
51.2 Tbps 64-port 400G spine for AI-scale fabrics
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Configuration at a Glance
Tailored per engagement. Full technical overview below.
Overview
The Nexus 9364D-GX2A is a 2RU spine switch with 64 QSFP-DD 400G ports delivering 51.2 Tbps for the largest spine-leaf and AI cluster fabrics. It ships specified, configured, optic-matched, and fully tested through authorized Cisco channels with manufacturer warranty coverage.
Who This Solution Is For
Business Benefits
Extreme spine density
Sixty-four 400G ports in 2RU cut the number of spine switches a large fabric requires.
AI-ready throughput
51.2 Tbps non-blocking capacity sustains east-west traffic from dense GPU clusters.
Flexible speed mix
Native 200/100/40G and 4x breakout per port adapt the spine to varied leaf speeds.
Typical Business Use Cases
AI/HPC cluster spine backbone
Hyperscale spine-leaf aggregation
High-radix VXLAN spine
ACI spine for large fabrics
Industry Applications
Technical Overview
Built on the Cisco GX2 Cloud Scale ASIC, the 9364D-GX2A provides 51.2 Tbps of bandwidth and 8.35 Bpps across 64 QSFP-DD 400G ports plus two 1/10G SFP+ ports. It operates in NX-OS or ACI spine mode with VXLAN BGP-EVPN, segment routing, and per-port 4x10/25/50/100G and 2x200G breakout.
| Switch Fabric | 51.2 Tbps, 8.35 Bpps |
| 400G Ports | 64x QSFP-DD (40/100/200/400G) |
| Management Ports | 2x 1/10G SFP+ |
| ASIC | Cisco GX2 Cloud Scale |
| Port Breakout | 4x10/25/50/100G, 2x200G per port |
| Form Factor | 2RU rack-mountable |
| Operating Modes | NX-OS and ACI spine |
| Fabric Features | VXLAN BGP-EVPN, segment routing, telemetry |
| Warranty | Cisco limited hardware warranty; Smart Net options |
Specifications are indicative and configured to each engagement. Request a quote for a configuration tailored to your requirements.
Warranty, Support & Fulfillment
Every system ships from an authorized channel, configured and tested, with the documentation enterprise buyers need — backed by warranty and a dedicated account team.
Enterprise Warranty
Full manufacturer warranty with optional on-site, next-business-day support and extended coverage.
Authorized Channel
Sourced through Tier-1 distribution and OEM partners — never grey market. Asset & warranty records included.
Lead Time & Deployment
48-hour quotes, then configured, burn-in tested, and delivered on a committed schedule.
Nationwide Fulfillment
Coordinated logistics, rack-and-stack, and delivery wherever your infrastructure lives.
Frequently Asked Questions
When should I pick the 9364D-GX2A over the 9332D-GX2B?
Choose the 9364D-GX2A when you need 64 400G spine ports and 51.2 Tbps for very large or AI-scale fabrics; the 9332D-GX2B suits mid-size 32-port spines.
Is this switch suited to GPU training clusters?
Yes. Its 51.2 Tbps non-blocking fabric and high 400G radix are designed for the dense east-west traffic of AI training and HPC pods.
Can it serve as a high-density leaf too?
With per-port breakout it can aggregate large numbers of 100G or 200G leaf links, though its primary role is a high-radix spine.
Hardware Assistance
Configure the Cisco Nexus 9364D-GX2A (N9K-C9364D-GX2A) 64-Port 400G QSFP-DD High-Density Spine Switch with Nexus Compute
Tell us your requirements and a hardware specialist will help you specify, configure, and quote the right system — typically within two business days. No obligation.