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NXM-X4D
Nexus 400G Line Expansion Module
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NXM-X4D is a high-performance Ethernet module engineered for high-speed connectivity in data centers and enterprise networks. Designed as a PCIe card, it supports data rates of 10Gbps and 40Gbps through its SFP+ connector interface, making it ideal for upgrading server network interfaces and connecting to high-speed networks. Its robust design is compatible with leading routers, switches, and servers, and it fully supports protocols like TCP/IP and iSCSI for reliable network communication.
Optimized for installation in demanding environments, the NXM-X4D module offers a compact form factor with easy PCIe integration. Its advanced features such as auto-negotiation, Wake-on-LAN, Jumbo Frames, and QoS ensure efficient and reliable data transfer, making it perfect for expanding data center capacity and streamlining network upgrades.
NXM-X4D price is $4,396.00, a 47.4% saving from the Cisco list price of $8,355.00. NXM-X4D is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for NXM-X4D for additional pricing. Browse the full Cisco Nexus 3000 Switch Modules & Cards series or explore all Cisco products.
A global cloud provider integrates the NXM-X4D-Nexus 400G Line Expansion Module into its spine-and-leaf fabric to consolidate four 100G uplinks into a single 400G link. This upgrade streamlines cabling, slashes port-count by 75%, and delivers up to 1.6Tbps of aggregate spine capacity, enabling seamless VM east–west traffic growth and 30% lower per-Gbps transport cost.
A multinational investment bank deploys the NXM-X4D-Nexus 400G module in its trading floors to interconnect order-matching engines and market data feeds. By leveraging 400G QSFP-DD direct links, the solution achieves sub-microsecond latency, improves trade execution speed by 20%, and secures regulatory compliance through deterministic jitter control.
A Tier-1 service provider implements the NXM-X4D-Nexus 400G Line Expansion Module in its Metro Ethernet core to support multi-tenant EVPN services. The high-density 400G ports double service throughput, enable hitless maintenance with redundant hot-swap modules, and guarantee 99.999% uptime for SLA-driven business and residential customers.
To get the detailed certification, please go to the Compliance Center.
 NXM-X4D |  NXM-XBLNK |  NXM-X16C | |
|---|---|---|---|
| Product Type | Network Module | Network Module | Network Card |
| Module Type | Ethernet | Ethernet | Ethernet |
| Data Rate | 10Gbps / 40Gbps | 10G | 10Gbps |
| Connector Type | SFP+ | SFP+ | RJ-45 |
| Supported Protocols | TCP/IP / iSCSI | TCP/IP / iSCSI | TCP/IP / iSCSI |
| Form Factor | PCIe | PCIe | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Arista / Dell / HP | Cisco / Juniper / Arista / Dell / HP | Cisco / Juniper / Arista / Dell / HP |
| Max Speed | 40Gbps | 10Gbps | 10Gbps |
| Supported Features | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames |
| Power Consumption | 15W | 7W | 12W |
| Interface Ports | Ethernet | SFP+ | Ethernet |
| Expansion Slots | N/A | N/A | N/A |
| Product Name | NXM-X4D High Performance Ethernet Module | NXM-XBLNK 10G Ethernet Module | NXM-X16C Network Card |
| Height | 0.5 inches | 1.5 inches | 0.7 inches |
| Width | 3.0 inches | 3.4 inches | 3.4 inches |
| Depth | 4.0 inches | 0.5 inches | 4.5 inches |
| Weight | 1.2 lbs | 0.2 lbs | 0.5 lbs |
The Nexus 400G Line Expansion Module has greatly increased our bandwidth capacity. It's a high-performance solution for handling heavy traffic loads efficiently.
The NXM-X4D expansion module offers exceptional 400G performance. It integrates seamlessly into our network, offering fast, reliable connectivity for growing demands.
We upgraded to the NXM-X4D for its high-speed performance. It's ideal for handling large-scale data traffic with low latency and high efficiency.
The NXM-X4D expansion module provides excellent throughput. It's been a great addition, allowing our network to scale while maintaining high-performance standards.
This expansion module offers robust performance and handles large data volumes with ease. The NXM-X4D is perfect for expanding our network's capacity.
The Nexus 400G Line Expansion Module (NXM-X4D) is a Cisco line card that delivers four 400 Gbps QSFP-DD ports to expand Nexus 9500 series switch capacity.
The NXM-X4D is compatible with Cisco Nexus 9504, 9508, and 9516 chassis running NX-OS Release 9.3(5) or later.
Key features include four QSFP-DD 400 Gbps ports, up to 1.6 Tbps module throughput, low-latency forwarding, and advanced telemetry analytics.
To install, power down the chassis, slide the NXM-X4D into an available line card slot, secure the captive screws, then power up and verify slot status via CLI.