Cisco C9300-48T Switch

The Cisco Catalyst C9300-48T Switch stands as standard-bearer enterprise architecture, designed explicitly for next-generation security, Cloud, and IoT demands. Featuring 48 high-performance Gigabit Ethernet RJ-45 ports, this stackable switch provides foundational connectivity for campus network cores and access layers alike. Powered by Cisco’s Unified Access Data Plane (UADP) ASIC architecture and running the open Cisco IOS XE operating system, the C9300-48T delivers unmatched stackability, high availability, and proactive defense capabilities.

For organizations seeking robust data-only deployments without Power over Ethernet (PoE) overhead, the C9300-48T offers an optimal balance of bandwidth density, modular uplink flexibilities, and advanced Layer 2/Layer 3 switching functionalities. Whether integrated into software-defined access (SD-Access) architectures or operating as a high-density standalone aggregation switch, it guarantees high performance across complex enterprise IT environments.

Key Features and Hardware Highlights of Cisco C9300-48T

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The C9300-48T switch is built to deliver reliability and operational flexibility. Its hardware layout and software orchestration cater directly to scalable deployment strategies:

• 48 Dedicated Gigabit Ethernet Ports: High-density 10/100/1000 Mbps RJ-45 copper ports optimized for workstations, servers, and non-PoE network appliances.
• StackWise-480 Technology: Delivers high-density stacking bandwidth up to 480 Gbps, allowing up to 9 switches to act as a unified, single management object.
• Modular Uplink Options: Customizable uplink network modules supporting 1G, 10G, 25G, 40G, and Multigigabit interfaces.
• Cisco StackPower: Innovative power-sharing system allowing power supplies to be pooled across stack members for enhanced redundancy.
• Enhanced Security: Encrypted Traffic Analytics (ETA), AES-128 MACsec encryption, Trust Anchor technologies, and Secure Boot protection.
• x86 CPU Architecture: Supports container-based execution, enabling direct hosting of third-party applications and network monitoring agents.

Network Redundancy and Power Architecture

Uninterrupted business operations demand solid hardware resilience. The Cisco C9300-48T features dual, field-replaceable power supply slots and dual variable-speed redundant fans. Default shipping typically includes one primary AC power supply, with optional secondary modular power units available to achieve full power supply redundancy.

If your infrastructure requires full PoE capabilities across 48 ports, consider inspecting the Cisco Catalyst C9300X-48HX, which delivers high-power UPOE+ capabilities alongside Multigigabit port density.

Detailed Technical Specifications

Below is the comprehensive technical overview for the Cisco Catalyst C9300-48T switch:

Uplink Expansion Modules and Connectivity Options

The C9300-48T features flexible uplink choices via optional Network Modules (NM). These hot-swappable modules let network managers upgrade uplink speeds dynamically as enterprise data demands expand.

For organizations deploying Catalyst 9200 series hardware elsewhere in their topology, uplink requirements can be met using specialized options such as the Cisco C9200-NM-4X Module or the 25G-ready Cisco C9200-NM-2Y Module. When uplink expansion slots are unpopulated, it is recommended to protect expansion bays using a official slot cover like the Cisco C9200-NM-Blank Slot Cover.

Additionally, legacy deployments or entry-level uplink requirements can leverage the Cisco C9200-NM-4G Module, whereas higher bandwidth QSFP aggregation is achievable through modules such as the Cisco C9200-NM-2Q Uplink Module.

Comparative Analysis: Catalyst C9300-48T vs. Adjacent Models

Choosing the correct switch tier depends heavily on power demands, port density, line-rate throughput requirements, and physical rack constraints. Below is a comparative snapshot evaluating the C9300-48T against alternate Catalyst family options:

Evaluating Compact & Small-Form-Factor Alternatives

For branch offices or remote workstations where 48 ports are excessive, compact desktop or rack-edge switches present a cost-effective alternative. Solutions like the Cisco C9200CX-8P-2X2G Compact Switch or the high-power Cisco C9200CX-12P-2X2G Switch provide full Layer 2/3 capabilities with reduced physical footprints.

For installations requiring UPOE multi-gigabit capabilities in a compact casing, explore the Cisco C9200CX-8UXG-2X Switch. Where specialized HVAC or HVAC-free heating scenarios exist, high-temperature units such as the Cisco C9200CX-12P-2XGH Switch and Cisco C9200CX-8P-2XGH Switch deliver hardened climate tolerance. You can also evaluate the Cisco C9200CX-8UXG-2XH Hardened Switch or the passthrough-capable Cisco C9200CX-8PT-2G Compact Switch for specialized space-saving deployments.

Advanced Software Capabilities: Cisco DNA & Security Framework

The Cisco C9300-48T is built around Cisco IOS XE software architecture. It supports automated provisioning via zero-touch onboarding (ZTP), Python scripting, and RESTful APIs. Security features embedded in the switch protect sensitive core networks against internal and external threats.

Software Subscription Licensing Options

The Catalyst 9300 series utilizes subscription-based licensing tiers to deliver features tailored to corporate environments:

• Network Essentials: Includes core switching features, static and Layer 3 routing (OSPF, EIGRP stub), basic telemetry, and standard access control lists (ACLs).
• Network Advantage: Adds advanced Layer 3 routing protocols (full OSPF, BGP, IS-IS), Cisco TrustSec, Flexible NetFlow, MPLS, and full SD-Access segmentation features.

Small-to-medium enterprise setups looking for simplified smart-managed alternatives might also compare Catalyst options with modern SMB solutions like the Cisco Catalyst C1300X-24T-4X Switch or the 48-port Cisco Catalyst C1300X-48T-4X Switch.

Similarly, for high-power smart office builds, models like the Cisco Catalyst C1300X-24P-4X Managed Switch and Cisco Catalyst C1300X-48P-4X Managed Switch deliver flexible PoE options alongside 10G uplink speeds.

Deploying Catalyst 9300 in SD-Access Architectures

In modern enterprise IT environments, Cisco Software-Defined Access (SD-Access) streamlines security policies across network users and connected devices. The C9300-48T functions seamlessly as an SD-Access edge node, automating network segmentation, guest access policies, and device profiling via Cisco Identity Services Engine (ISE).

For organizations deploying high-density copper or multi-gigabit workloads across campus environments, integrating the C9300-48T alongside specialized switches like the Cisco Catalyst C1300X-24MU-4X Switch ensures seamless connectivity between access closets and branch connections.

Further expansion models within smart-managed lineups include the compact Cisco C1300X-10NU-2X Switch, the high-density Cisco C1300X-24NGU-4X Multi-Gig Switch, and the top-tier Cisco C1300X-48NGU-4X Multi-Gig Switch.

Installation, Mounting, and Environmental Guidelines

Installing the C9300-48T requires standard 19-inch equipment racks. Below are essential guidelines for physical deployment:

1. Rack Clearance: Ensure 1U vertical rack space with adequate front-to-back airflow clearance (minimum 3 inches at front and rear vents).
2. Power Redundancy Installation: When using primary and secondary power modules, connect them to separate circuit breakers to safeguard against power outage risks.
3. Stack Cables Insertion: When forming a StackWise-480 stack, ensure Cisco stack cables are securely locked into StackWise ports using manual screw latches.
4. Operating Temperatures: Maintain ambient operating temperatures between -5°C to 45°C (23°F to 113°F) for maximum hardware longevity.

Frequently Asked Questions (FAQ)

Does the Cisco C9300-48T switch support PoE or PoE+?

No, the C9300-48T is a data-only (non-PoE) switch designed specifically for devices that do not require Power over Ethernet, such as desktop computers, printers, and network servers. If you require PoE+ or UPOE connectivity, consider evaluating models in the Catalyst 9300 or 9200 series that feature PoE port designs.

Can I stack the C9300-48T with legacy Catalyst switches like the C3850 or C2960X?

No, StackWise-480 architecture is native to the Catalyst 9300 series. You cannot mix Catalyst 9300 switches in the same physical stack with Catalyst 3850, 2960X, or Catalyst 9200 switches. Stacking is strictly supported among Catalyst 9300 series members.

What is the maximum stacking capacity supported by the C9300-48T?

When stacked using Cisco StackWise-480 cables, the C9300-48T provides up to 480 Gbps of stacking bandwidth across up to 9 stack members, managed through a single active switch control plane.

Are uplink ports built into the C9300-48T chassis?

The C9300-48T base chassis does not include fixed uplink ports. Uplink connections are provided via modular network modules (NMs) inserted into the front expansion slot, allowing custom selection of 1G, 10G, 25G, or 40G interfaces.

Final Verdict & Ordering Information

The Cisco Catalyst C9300-48T Switch remains an exceptional choice for enterprise organizations seeking dependable 1G copper port density, powerful stackability, and future-proof software capabilities. With full Cisco IOS XE orchestration and flexible modular uplink support, it offers long-term reliability for growing digital infrastructures.