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N3K-C31128PQ-10GE
Nexus 31128PQ, 96 SFP+ ports, 8 QSFP+ ports, 2RU switch
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N3K-C31128PQ-10GE is engineered with a modern, high-density architecture that supports both Layer 2 and Layer 3 operations, ensuring low-latency and high-throughput performance for demanding data center environments. Its robust design features an efficient AC power supply and a suite of 10GE ports—including dedicated SFP+ modules—crafted to deliver reliable, high-speed connectivity for mission-critical applications.
N3K-C31128PQ-10GE also offers reliable stacking capabilities that facilitate straightforward scalability and network expansion. Designed for versatility and performance, this switch is ideally suited for use cases ranging from large-scale enterprise deployments to data center applications where consistent uptime and a compact, rack-mount form factor are essential.
N3K-C31128PQ-10GE price is $7,116.00, a 82.2% saving from the Cisco list price of $39,869.00. N3K-C31128PQ-10GE is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for N3K-C31128PQ-10GE for additional pricing. Browse the full Nexus 3000 Switches series or explore all Cisco products.
In large enterprise data centers building a scalable spine-leaf topology, the N3K-C31128PQ-10GE Nexus 31128PQ switch provides 96 SFP+ 10GbE leaf ports and 8 QSFP+ 40GbE spine uplinks in a 2RU form factor. By delivering up to 1.2Tbps of non-blocking throughput, low-latency forwarding, and automated NX-API orchestration, this deployment accelerates east-west traffic by 50% and cuts network expansion time by 30%, ensuring seamless growth and simplified operations.
For HPC and big data analytics clusters demanding extreme throughput and predictable latency, the Cisco Nexus 31128PQ (N3K-C31128PQ-10GE) supplies 96 low-latency 10GbE ports to interconnect compute nodes and storage arrays, plus 8 40GbE QSFP+ ports for top-of-rack aggregation. Leveraging Cisco Dynamic Buffer Allocation and advanced telemetry, this solution boosts job throughput by 25%, reduces jitter in bursty workloads, and streamlines capacity planning with real-time performance insights.
At the metro edge, service providers use the N3K-C31128PQ-10GE Nexus 31128PQ to terminate up to 96 customer SFP+ 10GbE links and aggregate traffic over 8 QSFP+ 40GbE uplinks to the core. With integrated MPLS, QoS, EVPN-VXLAN segmentation, and hitless upgrade capabilities, this 2RU switch delivers 99.999% availability, reduces convergence times by 40%, and maximizes port density for profitable Ethernet services.
To get the detailed certification, please go to the Compliance Center.
 N3K-C31128PQ-10GE |  N3K-C3132Q-40GE |  N3K-C3172TQ-10GT |  N3K-C3408-S |  N3K-C3064TQ-32T | |
|---|---|---|---|---|---|
| Depth | 18 inches | 18 inches | 17 inches | 15 inches | 18.0 inches |
| Ethernet Technology | 10GE | 40 Gigabit Ethernet | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 256 MB | 32 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 1.75 inches | 1.75 inches | 1.75 inches |
| IOS | N/A | N/A | IP Services | IP Services | IP Services |
| Interface Ports | 10GE | 40GE | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | N3K-C31128PQ-10GE | N3K-C3132Q-40GE | N3K-C3172TQ-10GT | N3K-C3408-S | N3K-C3064TQ-32T |
| Media Type Supported | Fiber | Fiber | Fiber | Combo | Twisted Pair |
| Memory | 256 MB | 512 MB | 256 MB | 256 MB | 512 MB |
| Number of Downlink Ports | N/A | 40 Ports | 8 Ports | 48 Ports | 32 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | Under 12 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | N/A | 40-port fixed configuration with QSFP+ slots | Fixed 10-Gigabit Ethernet ports | N/A | 32 fixed 10/100/1000 ports, 4 dedicated 10G SFP+ uplink ports |
| Power Consumption | 150 W | N/A | N/A | 210 W | N/A |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | Redundant Power Supply | Redundant Power Supply / AC Power Supply |
| Product Name | Cisco Nexus N3K-C31128PQ-10GE Switch | Cisco Nexus 3132Q-40GE Switch | Cisco Nexus 3172TQ 10-Gigabit Ethernet Switch | Cisco Nexus 3408-S Switch | Cisco Nexus 3064TQ-32T Fixed Switch |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | No | Yes | Yes | Yes |
| SFP Ports | 4 SFP Ports | N/A | 4 SFP Ports | Combo | 4 SFP Ports |
| Switching Capacity | N/A | 3200 Gbps | N/A | 480 Gbps | 640 Gbps |
| Switching Capacity with Stacking | N/A | 6400 Gbps | N/A | N/A | N/A |
| Uplink Configuration | 10G | 40G | 10G | 10G | 10G |
| Weight | 15 lbs | 22 lbs | 12 lbs | 12 lbs | 20 lbs |
| Width | 17.5 inches | 17.5 inches | 19 inches | 17.5 inches | 17.5 inches |
This switch handles massive east-west traffic effortlessly. Port density and performance make it ideal for scalable data centers.
Rock-solid reliability with predictable latency. It performs exceptionally well in our spine-leaf architecture.
High port density and consistent throughput make this switch a core part of our network design.
Configuration was straightforward and performance has been flawless. It's built for serious enterprise workloads.
This Nexus model delivers excellent stability and bandwidth. It easily supports our growing infrastructure needs.
The Cisco Nexus 31128PQ is a 2RU data center switch offering 96 fixed 10Gb SFP+ ports and 8 fixed 40Gb QSFP+ ports for high-density server and uplink connectivity.
The Nexus 31128PQ provides up to 2.56 Tbps of non-blocking switching capacity and 1.92 Bpps of forwarding performance for latency-sensitive workloads.
The Nexus 31128PQ runs Cisco NX-OS 7.x, delivering enterprise-grade features such as VXLAN, EVPN, MPLS, QoS, OSPF, BGP, and advanced telemetry for modern data centers.
The Nexus 31128PQ supports Virtual Port Channel (vPC), Cisco FabricPath, VXLAN BGP EVPN, and Multi-Site Orchestration to simplify network virtualization and multi-tenant segmentation.
The switch includes dual redundant, hot-swappable power supplies and fans, dual management modules, vPC peer redundancy, and in-service software upgrades (ISSU) for continuous uptime.
Each Nexus 31128PQ ships with two 650W AC hot-swappable power supplies; an optional 650W DC power supply is also available for mixed-mode power redundancy.
Under full load, the Nexus 31128PQ consumes approximately 500W, delivering an average of 3.5 W per 10Gb port for energy-efficient operation.
The switch includes six hot-swappable fan trays in a front-to-back airflow design, providing N+1 cooling redundancy in data center racks.
Management options include a dedicated 10/100/1000 Ethernet management port, USB console port, and in-band management via Telnet, SSH, SNMP, NX-API, and Cisco DCNM.
Yes. Its high-density 10Gb and 40Gb port configuration, low latency, and 2.56 Tbps throughput make it ideal for ToR deployments in enterprise and cloud data centers.
The switch uses front-to-back airflow with six modular fans, and operates below 65 dBA in data center environments, meeting enterprise noise requirements.
Cisco offers a limited lifetime hardware warranty with next-business-day replacement, and optional SMARTnet services for 24×7 technical support and software updates.
No. The Nexus 31128PQ is strictly a fiber-only switch with SFP+ and QSFP+ ports and does not provide PoE or PoE+ capabilities.
The switch is compliant with RoHS, WEEE, CE, FCC Class A, and UL/CSA safety standards, ensuring eco-friendly operation and regulatory compliance.
Advanced NX-OS features such as VXLAN BGP EVPN and Cisco Application Centric Infrastructure (ACI) integration require Cisco software activation licenses purchased separately.
The switch supports NetFlow, SPAN, ERSPAN, sFlow, Cisco Data Center Network Manager (DCNM), streaming telemetry, and built-in event management for real-time visibility.