Cisco C9300-48UB Switch

The Cisco Catalyst C9300-48UB Switch is an enterprise-class network switching solution designed for organizations that require dependable connectivity, advanced network management, and high-power delivery for modern business devices. As part of the Cisco Catalyst 9300 Series, the C9300-48UB provides 48 Gigabit Ethernet access ports with Cisco Universal Power over Ethernet (UPOE) support and modular uplink capabilities. It is designed to help enterprises build scalable, secure, and high-performance campus networks while simplifying the connection of IP phones, wireless access points, surveillance devices, and other compatible network endpoints.

For IT departments, system integrators, corporate buyers, and network infrastructure specialists, the Cisco C9300-48UB offers a practical combination of port density, power flexibility, and enterprise networking capabilities. Its modular architecture provides flexibility when selecting compatible uplink modules, allowing organizations to plan network connectivity according to their infrastructure requirements. Businesses evaluating this model can also explore the Cisco Catalyst C9300-24UB Switch for deployments that require fewer access ports.

Cisco Catalyst C9300-48UB Switch Overview

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The Cisco Catalyst 9300 family is designed for enterprise access-layer networking, supporting business environments where reliable connectivity, centralized administration, network segmentation, and device integration are essential. The C9300-48UB combines a 48-port copper access configuration with Cisco UPOE technology, making it suitable for organizations that need to connect a large number of network devices while supplying compatible endpoints with power through Ethernet cabling.

Instead of installing separate power adapters for every supported endpoint, organizations can use compatible Power over Ethernet connections to simplify cabling and reduce the number of individual power connections required at the access layer. The practical benefits depend on the connected devices, the configured power budget, the installed power supply, and the overall network design.

The C9300-48UB is particularly relevant to enterprise environments that need a structured approach to network expansion. Its modular uplink architecture supports the selection of compatible uplink connectivity options, while the Catalyst 9300 platform provides enterprise networking features for organizations managing multiple users, departments, and connected devices.

Key Product Highlights

• 48 Gigabit Ethernet access ports: Connect compatible wired devices across offices, campuses, and enterprise facilities.
• Cisco UPOE support: Supply power to compatible network endpoints over Ethernet connections.
• Modular uplinks: Select compatible uplink modules according to the network’s connectivity requirements.
• Enterprise switching platform: Support structured access-layer network deployments.
• Scalable network architecture: Integrate the switch into appropriately designed enterprise network environments.
• Centralized administration options: Manage the device using supported Cisco management tools and software configurations.
• Network segmentation capabilities: Implement supported VLAN and access-control configurations according to organizational policies.
• Rack-mounted deployment: Integrate the switch into compatible enterprise equipment racks.

Cisco C9300-48UB Technical Specifications

The following table summarizes the principal hardware characteristics of the Cisco Catalyst C9300-48UB. Buyers should verify the exact product identifier, software license, power configuration, uplink module, and included accessories before placing an order.

Specifications and included components can vary according to the exact ordering SKU and product configuration. The switch model alone does not establish the included license, power cords, uplink module, software entitlement, or warranty conditions. Review the applicable product documentation and seller’s listing to confirm the configuration being purchased.

Understanding Cisco UPOE on the C9300-48UB

One of the defining characteristics of the Cisco Catalyst C9300-48UB is its support for Universal Power over Ethernet. UPOE enables compatible devices to receive both network connectivity and electrical power through supported Ethernet connections. This can simplify the deployment of network equipment in locations where providing a separate power outlet for each endpoint would be inconvenient or costly.

Powering Compatible Enterprise Devices

Depending on their individual power requirements and compatibility, devices connected to the C9300-48UB may include wireless access points, IP phones, selected collaboration equipment, surveillance systems, and other powered network endpoints. Consolidating power delivery at the network switch can help IT teams organize cabling and manage connected equipment more efficiently.

Important PoE Planning Considerations

Before connecting powered devices, administrators should verify the power requirements of each endpoint, the supported PoE standard, the switch’s available power budget, and the configuration of the installed power supply. The total power available to connected devices is not necessarily equal to the power supply’s advertised wattage. Environmental conditions, hardware configuration, and other system requirements must also be considered.

Organizations comparing alternative access switches can review the Cisco C9300-24UB, which offers a 24-port configuration, or the Cisco Catalyst C9300-24U when evaluating another UPOE-capable model in the same family.

Enterprise Networking Features and Deployment Benefits

High-Density Network Connectivity

With 48 Gigabit Ethernet access ports, the C9300-48UB can connect a substantial number of wired endpoints through a single switch. This configuration can be useful for corporate offices, university buildings, business campuses, and other locations where many devices share the same access-layer infrastructure.

High port density can simplify rack planning and provide room for structured device connectivity. However, the appropriate switch count depends on the number of endpoints, expected growth, redundancy requirements, physical layout, and available network uplinks.

Modular Uplink Flexibility

The C9300-48UB uses a modular uplink design. Rather than relying exclusively on a fixed uplink configuration, compatible modules can be selected to meet the requirements of the wider network. This can be valuable when connecting access switches to distribution switches, aggregation equipment, or core network infrastructure.

Uplink module compatibility, available speeds, and supported combinations must be verified against Cisco’s documentation. Organizations planning higher-capacity uplinks should also consider the capabilities of the connected devices, optical transceivers, cabling, and network topology.

For infrastructure projects requiring alternative port configurations, consider the Cisco Catalyst C9300-48T, the Cisco Catalyst C9300-24T, and the Cisco Catalyst C9300-24P.

Network Segmentation and Administration

Enterprise networks often serve different departments, applications, and device categories. Supported VLAN configurations can help administrators separate traffic logically, while applicable access-control features can support organizational security policies. Properly planned segmentation can make it easier to manage guest connectivity, employee devices, voice traffic, and operational systems.

Available features depend on the switch’s software release, license, configuration, and interoperability with other network equipment. Administrators should confirm the feature requirements of their intended deployment before selecting a license or designing a network architecture.

Scalability for Growing Organizations

Businesses frequently add employees, wireless access points, collaboration systems, and connected devices as their operations expand. A 48-port enterprise switch can provide a structured access layer for current connectivity requirements while supporting a broader network design that accommodates future expansion.

Organizations planning larger deployments may also evaluate the Cisco Catalyst C9300X-48HX, the Cisco Catalyst C9300X-48TX, and the Cisco Catalyst C9300X-48HXN for different performance and port-density requirements.

Typical Applications of the Cisco Catalyst C9300-48UB

Corporate Offices and Business Campuses

In corporate offices, the C9300-48UB can serve as an access switch for desktop computers, compatible IP phones, printers, wireless access points, and other Ethernet-connected equipment. Its port density makes it relevant to departments that require multiple wired connections and centralized network administration.

For larger campuses, network designers can deploy multiple access switches and connect them through suitable uplinks to distribution or core infrastructure. The final architecture should account for resilience, bandwidth demand, security policies, and the number of devices supported in each location.

Education and Institutional Networks

Schools, universities, training facilities, and research institutions may need reliable wired access for workstations, wireless infrastructure, communication devices, and shared technical equipment. The C9300-48UB can form part of a broader network design when its port configuration, PoE capabilities, and management features match the institution’s requirements.

Wireless Infrastructure

Enterprise wireless networks often depend on access switches to provide wired connectivity and power to compatible wireless access points. The C9300-48UB’s UPOE support can be useful when the selected access points require an appropriate level of power delivery.

For wireless deployments, administrators should check each access point’s Ethernet speed, PoE requirements, uplink capacity, and compatibility. A switch with 48 Gigabit Ethernet ports should not be assumed to provide multigigabit access on every port.

IP Telephony and Collaboration

Organizations operating IP phones and compatible collaboration endpoints can use a PoE-capable access layer to simplify device installation. Logical network separation, quality-of-service policies, and appropriate access controls can help administrators organize voice and data traffic according to business requirements.

Related communication products available through Nexoget include the Cisco IP Phone 7841, Cisco IP Phone 7821, Cisco IP Phone 8851, and Cisco IP Phone 8861. Always verify device compatibility and power requirements before deployment.

Cisco C9300-48UB vs. Other Cisco Catalyst Switches

Choosing an enterprise switch requires more than comparing port counts. Buyers should consider PoE capabilities, uplink flexibility, access-port speeds, licensing, available power, and the performance requirements of the intended environment.

Technical Comparison Table

This comparison summarizes the principal model-level differences. Exact supported features, power budgets, licenses, and uplink options must be checked against the documentation for each product SKU.

C9300-48UB vs. C9300-24UB

The primary difference is the number of access ports. The C9300-48UB is intended for deployments requiring up to 48 Gigabit Ethernet access connections, whereas the C9300-24UB provides 24 access ports. Both models support Cisco UPOE and modular uplinks, but the appropriate selection depends on endpoint density, available rack space, power planning, and future expansion requirements.

View the Cisco Catalyst C9300-24UB product page to compare the smaller configuration.

C9300-48UB vs. C9300-48T

The C9300-48T is a 48-port data switch without PoE, while the C9300-48UB supports UPOE. Organizations connecting devices that require power over Ethernet should evaluate the C9300-48UB. Environments where connected endpoints use independent power sources may find a data-only model more appropriate, depending on the remaining technical requirements.

Review the Cisco Catalyst C9300-48T for a comparison with a non-PoE alternative.

C9300-48UB vs. C9300-48UN

Although their model names are similar, the C9300-48UB and C9300-48UN should not be treated as identical products. The C9300-48UB provides 48 Gigabit Ethernet copper ports with UPOE, while the C9300-48UN offers 48 multigigabit ports supporting speeds up to 5 Gbps and UPOE. The latter may be relevant when compatible wireless access points and other endpoints require more than 1 Gbps at the access layer.

Explore the Cisco Catalyst C9300-48UN product page for details about the multigigabit model. Confirm the exact SKU before ordering.

Explore Related Cisco Catalyst 9300 and 9300X Switches

Nexoget lists several Cisco Catalyst switches for different access-layer and enterprise connectivity requirements. Comparing related models can help buyers select hardware that aligns with their port density, uplink capacity, and network expansion plans.

• Cisco Catalyst C9300-24S-E – a 24-port fiber-oriented switching option.
• Cisco Catalyst C9300X-12Y-E – a higher-speed switching model for appropriate enterprise connectivity requirements.
• Cisco Catalyst C9300X-24Y-E – another option to consider when evaluating fiber-based enterprise switching.
• Cisco Catalyst C9300X-24HX – a 24-port multigigabit UPOE+ model.
• Cisco Catalyst C9200-48PB – an alternative in the Catalyst 9200 family.
• Cisco Catalyst C9200-48PXG – another enterprise access switch to evaluate.
• Cisco Catalyst C9200L-48PL-4X – a fixed-uplink access switching option.
• Cisco Catalyst C9200L-48PXG-4X – an alternative for deployments with different access and uplink requirements.
• Cisco Catalyst C9300L-48T-4X-A – a fixed-uplink Catalyst 9300L option.
• Cisco Catalyst C9500-48Y4C-E – a model to evaluate for suitable higher-level enterprise network roles.

For a broader selection of networking hardware, visit the Nexoget networking equipment shop or browse the available product catalog if that catalog URL is enabled on your website.

What to Check Before Buying the Cisco C9300-48UB

Verify the Exact Product SKU

Cisco Catalyst switches may be offered under different ordering identifiers depending on the software license, regional configuration, and other options. Verify whether the quoted product is the C9300-48UB hardware model and confirm the complete SKU where applicable. Do not rely on a shortened model name alone when comparing quotations.

Check Licensing and Software Requirements

Enterprise switching features can depend on the software license and installed software version. Before purchasing, identify the routing, security, automation, management, and network segmentation capabilities your organization needs. Confirm the relevant feature entitlement and compatibility with the existing infrastructure.

Confirm Power and Uplink Requirements

Prepare a list of connected endpoints and their individual PoE requirements. Calculate the anticipated power demand and allow for appropriate operating margins. Also confirm the uplink module, port speed, transceiver type, fiber or copper medium, and compatibility with the upstream switch.

Review Product Condition and Warranty

For international procurement, confirm whether the product is new, refurbished, or otherwise supplied under a specific condition classification. Check the warranty coverage, included accessories, shipping terms, and regional support eligibility before completing the purchase.

For assistance with product questions, visit the Nexoget contact page. You can also review the About Us page to learn more about the business and its services.

Why Consider the Cisco Catalyst C9300-48UB?

The Cisco Catalyst C9300-48UB is worth evaluating when an organization needs a 48-port enterprise access switch with Gigabit Ethernet connectivity, Cisco UPOE, and modular uplink flexibility. It can support structured network deployments in offices, campuses, institutional environments, and other locations where multiple compatible devices require centralized connectivity.

Its main strengths are its high access-port density, support for powered endpoints, and integration into the Catalyst 9300 enterprise switching platform. Nevertheless, the right configuration depends on the required network speeds, PoE budget, software features, uplink design, and overall infrastructure strategy.

Buyers who need multigigabit access should compare the C9300-48UN and other compatible models before making a decision. Those who need fewer ports can evaluate the C9300-24UB, while organizations requiring data-only access can consider the C9300-48T.

Frequently Asked Questions About the Cisco C9300-48UB

How many ports does the Cisco C9300-48UB have?

The Cisco Catalyst C9300-48UB has 48 Gigabit Ethernet copper access ports. It is designed for deployments that require numerous wired network connections from a single enterprise switch.

Does the C9300-48UB support Power over Ethernet?

Yes. The C9300-48UB supports Cisco UPOE, allowing compatible powered devices to receive power and network connectivity through supported Ethernet connections. The available power budget depends on the hardware and power configuration.

Does the C9300-48UB support modular uplinks?

Yes. The model uses a modular uplink architecture. Buyers should verify compatible modules and supported interface speeds against Cisco’s official documentation before ordering.

What is the difference between the C9300-48UB and C9300-48UN?

The C9300-48UB provides 48 Gigabit Ethernet copper access ports with UPOE. The C9300-48UN provides 48 multigigabit access ports supporting speeds up to 5 Gbps, with UPOE. The appropriate model depends on endpoint speed requirements and the intended network design.

Is the C9300-48UB suitable for enterprise networks?

The C9300-48UB is part of Cisco’s Catalyst 9300 enterprise switching family and is designed for enterprise access-layer applications. Suitability for a particular deployment depends on capacity, software features, security requirements, and compatibility with the wider network.

Where can I compare Cisco Catalyst switches?

You can browse the Nexoget shop and compare related models, including the C9300-24UB, C9300-48T, and C9300-48UN. Confirm that each product page matches the exact hardware model you intend to purchase.

Purchase the Cisco Catalyst C9300-48UB from Nexoget

If your organization requires a 48-port enterprise switch with Gigabit Ethernet connectivity, Cisco UPOE, and modular uplink capabilities, the Cisco Catalyst C9300-48UB is a model to consider for your network infrastructure project. Review the hardware configuration, software licensing, power requirements, and compatibility with your existing equipment before placing an order.

Explore the Nexoget product catalog to compare available networking equipment. For questions about availability, product configuration, international shipping, or purchasing, contact the Nexoget team.

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