• Cisco N9K-X9836DM-A 36x400G QSFP-DD silver server rack with black panels
1 1

Cisco

Cisco N9K-X9836DM-A | Nexus 9800 36-Port 400G Line Card, 14.4Tbps, MACsec

N9K-X9836DM-A

POA
POA
POA
Sale Sold out
Taxes included. Shipping calculated at checkout.

Description

The Cisco N9K-X9836DM-A is a high-density 400G line card for Nexus 9800 Series modular switches, including the 9808 and 9804 chassis. Powered by three Cisco Silicon One Q200 ASICs, it delivers 36 QSFP-DD ports with 14.4 Tbps throughput and line-rate MACsec encryption on all ports. Designed for next-generation cloud, AI/ML, and high-performance data center environments requiring massive bandwidth and hardware-based security.

Features

36 ports of 400 Gigabit Ethernet with QSFP-DD interfaces
- Backward compatibility with QSFP28 (100G) and QSFP+ (40G) optics
- Line-rate MACsec encryption on all ports for secure data-in-transit protection
- Powered by three Cisco Silicon One Q200 ASICs with 7nm architecture
- 14.4 Tbps throughput per line card with line-rate forwarding for small packets
- Deep on-chip packet buffering and fully shared memory architecture
- Dynamic flowlet load balancing across fabric connections
- Hot-swappable (OIR capable) design for field replacement without chassis downtime
- Supports Cisco NX-OS for traditional data center networking
- Full integration with Cisco ACI fabric for policy-driven automation
- 16x 50G fabric connections per Q200 ASIC to each FM-A fabric module
- Redundant fabric architecture with up to 8+1 or 7+1 fabric module redundancy
- Local CPU and DRAM for distributed packet processing

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.

View full details

specs-tabs

Technical Specifications

FAQs

Technical Specifications

Port Configuration: 36x 400G QSFP-DD ports
- Supported Transceivers: QSFP-DD, QSFP28, QSFP+
- Throughput: 14.4 Tbps per line card
- ASIC: Three Cisco Silicon One Q200 processors (7nm technology)
- MACsec: Line-rate encryption on all 36 ports
- Fabric Bandwidth: 19.2 Tbps with eight FM-A fabric modules (16x 50G connections per Q200 to each fabric module)
- Memory: Local CPU and DRAM per line card
- Compatibility: Cisco Nexus 9808 and Nexus 9804 chassis
- Maximum Power Consumption: 2,436W
- Software License: Cisco Data Center Networking Advantage (-A); MACsec requires DCN Security add-on license
- Operating System: Cisco NX-OS or Cisco ACI

FAQs

Q: Which Nexus chassis models support the N9K-X9836DM-A line card?
A: The N9K-X9836DM-A is compatible with Cisco Nexus 9800 Series modular switches, specifically the Nexus 9808 (8-slot) and Nexus 9804 (4-slot) chassis platforms.

Q: Does this line card support MACsec encryption?
A: Yes, all 36 QSFP-DD ports support line-rate MACsec encryption at 400G speeds. MACsec functionality requires a Cisco Data Center Networking Security add-on license in addition to the Advantage base license included with the -A SKU.

Q: What transceiver types are supported by the N9K-X9836DM-A?
A: The line card supports QSFP-DD (400G), QSFP28 (100G), and QSFP+ (40G) transceivers, providing flexibility for mixed-speed deployments and migration scenarios.

Q: How many fabric modules are required for full line-rate performance?
A: Eight FM-A fabric modules provide 19.2 Tbps bandwidth per line card (exceeding the 14.4 Tbps line card capacity), ensuring 7+1 fabric redundancy and non-blocking performance. The chassis supports 4+1 redundancy for lower-speed configurations.

Q: What are typical use cases for this line card?
A: The N9K-X9836DM-A is ideal for high-density spine or aggregation layers in modern data centers, particularly cloud-scale fabrics, AI/ML clusters, HPC environments, and large-scale VXLAN deployments requiring 400G uplinks and hardware-based encryption.

Recently Viewed

  • Request a Quote

    Looking for competitive pricing? Submit a request, and our team will provide a tailored quote that fits your needs.

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Call us Now  

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Contact us