REFURBISHED
Cisco
Cisco N9K-C9236C Refurbished — 36x 100G QSFP28 1RU Switch Dual PSU
MPN: N9K-C9236C
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Lifetime
Warranty
ISO 9001
Certified Testing
R2v3
Responsible Refurb
25+
Years
5K+
Customers
ISO
Certified
✓
Tested
Every WhaleyComm unit is professionally tested, reset to factory defaults, and certified by our in-house engineers — the same standard trusted by 5,000+ organisations across 25 years. Not a refurb marketplace. A certified lifecycle partner.
Professionally tested to factory specification. Backed by 25+ years of enterprise trust.
This refurbished Cisco N9K-C9236C is a Nexus 9200 series 1RU fixed-configuration data center switch featuring 36 x 40/100G QSFP28 ports and dual power supplies. Each unit has been professionally tested, reset to factory defaults, and ships inspection-certified — giving enterprise buyers a proven platform at a fraction of new acquisition cost.Built on Cisco Cloud Scale technology, the N9K-C9236C delivers 7.2 Tbps of switching bandwidth and over 5.3 billion packets per second of forwarding throughput across all 36 QSFP28 ports. Every port is individually configurable across 1, 10, 25, 40, 50, and 100 Gbps speeds, enabling flexible breakout topologies for spine, aggregation, and high-density leaf designs. Running Cisco NX-OS, the platform supports line-rate Layer 2 and Layer 3 switching, programmable fabric, and full automation via DevOps toolsets — making it equally at home in traditional enterprise environments and modern cloud-scale deployments.
At $1,295, this unit represents exceptional value for organizations that need proven 100G spine-layer density without the capital outlay of new hardware. WhaleyComm's ISO 9001-certified refurbishment process and Lifetime Warranty mean there is no operational risk in choosing refurbished — only significant savings.
Technical Specifications
Brand
Cisco
Model
N9K-C9236C
Product Line
Nexus 9200 Series
Form Factor
1RU Rack-Mountable
Total Ports
36 x 40/100G QSFP28
Switching Capacity
7.2 Tbps
Forwarding Rate
5.3 Bpps (billion packets per second)
Port Speeds Supported
1, 10, 25, 40, 50, 100 Gbps
Port Configuration
Each port individually configurable as 1x100G, 1x40G, 4x10/25G, 2x50G, or 1x1/10G (QSA adapter)
Layer Support
Layer 2 and Layer 3
Operating System
Cisco NX-OS
System Memory
16 GB
SSD Storage
64 GB
Shared Buffer
30 MB
MAC Address Table
92,000 entries
Power Supplies
Dual (redundant)
Fans
4
Height
1.7 in
Width
22.5 in
Depth
17.3 in
Weight (chassis only)
18.2 lb (8.3 kg)
Ideal Use Cases
Data Center Spine Layer
The N9K-C9236C's 7.2 Tbps switching capacity and 36 x 100G QSFP28 ports make it an ideal spine switch for high-density data center fabrics that demand non-blocking, line-rate performance.
Aggregation and Leaf-Spine Fabric
Flexible per-port breakout to 10G, 25G, or 50G enables the 9236C to function as an aggregation layer node, connecting multiple ToR leaf switches with cost-effective 100G uplinks.
IP Storage Networks
The 30 MB shared buffer and fine-grained buffer allocation for non-drop queues make this switch well suited for IP storage environments such as NVMe-oF and iSCSI fabrics that require lossless delivery.
Cloud and IaaS Infrastructure
NX-OS programmability and support for DevOps automation toolsets position the N9K-C9236C as a strong fit for operators running cloud or Infrastructure-as-a-Service environments at scale.
Enterprise Campus Core Refresh
Organizations upgrading from aging 10G or 40G cores can deploy the N9K-C9236C as a high-density 100G core switch, extending network life at a fraction of new hardware cost.
What's Included
1x Cisco N9K-C9236C Nexus 9236C Switch
2x Power Supplies
Rack Mount Kit
Certificate of Testing
Lifetime Warranty — No Time Limits. No Questions.
Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it. We have stood behind our hardware for 25 years and 5,000+ customers — that is not a marketing line, it is our operating standard.
Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
COMPATIBLE OPTICS & CABLES
✓
It supports standard QSFP28 and QSFP+ optics and cables, and is compatible with breakout cables for 4x10G and 4x25G connectivity.
SOFTWARE COMPATIBILITY
✓
The Cisco N9K-C9236C is compatible with Cisco NX-OS software releases for the Nexus 9000 Series, including ACI mode when paired with a supported APIC controller.
For compatibility verification specific to your environment, contact our engineering team: +1 214 607-4800 or sales@whaleycomm.com
Shipping & Returns
Clear fulfilment, tracking, return, warranty, and support information for enterprise hardware orders.
Shipping
Orders typically ship within 1-2 business days after payment confirmation. Tracking details are shared once the order has been dispatched.
Returns
Eligible products can be returned according to WhaleyComm's return policy. For DOA, warranty, or product-related issues, contact the support team for replacement or resolution.
Frequently Asked Questions
Product-specific answers about compatibility, testing, warranty, fulfilment, and purchase confidence.
Yes. The N9K-C9236C is a fixed 1RU switch and operates fully as a standalone unit running Cisco NX-OS. It does not require a separate chassis or supervisor module.
Each of the 36 QSFP28 ports can be individually configured as 1x100G, 1x40G, 4x10/25G, 2x50G, or 1x1/10G using a QSA adapter. This gives network architects broad flexibility to support existing 10G or 25G infrastructure while scaling toward 100G.
Yes. The N9K-C9236C runs Cisco NX-OS and is supported in both standalone NX-OS mode and Cisco ACI fabric mode. It supports programmable fabric features, NETCONF, and standard DevOps toolsets for automation.
Yes. Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it at no cost — no time limits, no questions asked.
Every unit goes through our ISO 9001-certified testing process: full power-on diagnostics, port-by-port functionality testing, firmware verification, factory reset, and final inspection. A Certificate of Testing ships with every unit.
Cisco N9K-C9236C Refurbished — 36x 100G QSFP28 1RU Switch Dual PSU
$995.00
Cisco
Cisco N9K-C9236C Refurbished — 36x 100G QSFP28 1RU Switch Dual PSU
MPN: N9K-C9236C
$995.00
In Stock — Ships Same Day
