Cisco Catalyst C9300-48U 48-Port UPOE Managed Switch

The Cisco Catalyst C9300-48U is a powerful enterprise-class managed switch designed to deliver reliable connectivity, advanced network management, and high-performance switching for demanding business environments. Part of the Cisco Catalyst 9300 Series, this switch combines 48 Gigabit Ethernet UPOE ports, modular uplink capabilities, Layer 2 and Layer 3 networking, and enterprise-grade security features to support modern organizational networks.

Designed for enterprise access-layer deployments, the Cisco Catalyst C9300-48U provides connectivity for computers, IP phones, wireless access points, IoT devices, and other network endpoints. Its Cisco Universal Power over Ethernet (UPOE) capabilities allow compatible devices to receive power and data through a single Ethernet cable, helping simplify installation and reduce the need for separate power adapters.

With support for modular uplink network modules, the C9300-48U offers flexibility for connecting to aggregation and core network infrastructure. When equipped with the appropriate network module, it can provide 10GbE SFP+ uplink connectivity, making it suitable for enterprise networks requiring higher-speed connections between switching layers.

Cisco Catalyst C9300-48U Key Features

The Cisco Catalyst C9300-48U offers a comprehensive set of enterprise networking capabilities:

• 48 × 10/100/1000 Mbps RJ-45 Ethernet ports
• Cisco UPOE support
• Modular uplink architecture
• Support for compatible 10GbE SFP+ uplink modules
• Layer 2 and Layer 3 managed switching
• 1100W AC power supply configuration
• Cisco StackWise-480 stacking technology
• Cisco StackPower technology
• Advanced enterprise security features
• Network automation and management capabilities
• Enterprise campus networking support
• Cisco IOS XE software platform
• Designed for enterprise access-layer deployments

These features make the Cisco Catalyst C9300-48U a suitable solution for organizations that require scalable switching infrastructure and advanced network management.

48 Gigabit Ethernet UPOE Ports

The Cisco Catalyst C9300-48U features 48 Gigabit Ethernet RJ-45 ports, providing high-density connectivity for enterprise network devices.

Each port supports 10/100/1000 Mbps Ethernet connectivity, allowing the switch to connect a wide range of devices, including desktop computers, printers, IP phones, wireless access points, and compatible IoT equipment.

The 48-port configuration makes the switch particularly useful for organizations that need to connect multiple devices through a centralized network infrastructure.

By providing a large number of Gigabit Ethernet ports in a single switching platform, the C9300-48U helps simplify network deployment and reduce the need for multiple smaller switches.

Cisco UPOE Technology

One of the major advantages of the Cisco Catalyst C9300-48U is its support for Cisco Universal Power over Ethernet (UPOE).

UPOE allows compatible network devices to receive both power and data through a single Ethernet cable. This can simplify installation, reduce cable requirements, and provide greater flexibility when positioning powered devices.

UPOE is particularly useful for enterprise environments where devices may need higher power levels than conventional PoE solutions can provide.

Supported applications can include:

• Enterprise wireless access points
• IP phones
• Video conferencing equipment
• IoT devices
• Network-connected building systems
• Compatible high-power Ethernet devices

The actual power available to connected devices depends on the installed power supply configuration and the switch’s overall power budget.

Modular 10GbE Uplink Connectivity

The Cisco Catalyst C9300-48U features a modular uplink architecture, allowing network administrators to select compatible uplink modules based on their network requirements.

For deployments requiring 10GbE connectivity, the switch can be equipped with the Cisco C9300-NM-8X network module, which provides eight 10GbE SFP+ uplink ports.

This modular design allows organizations to adapt uplink connectivity according to their existing network infrastructure.

The 10GbE uplinks can be used to connect the switch to:

• Enterprise aggregation switches
• Core network switches
• Data center switching infrastructure
• High-speed network distribution systems

The modular architecture also provides flexibility when planning network upgrades or designing different switching configurations.

Layer 2 and Layer 3 Managed Switching

The Cisco Catalyst C9300-48U supports enterprise Layer 2 and Layer 3 networking capabilities through Cisco IOS XE.

Layer 2 switching enables communication between devices within the same Ethernet network and supports VLAN-based segmentation.

Layer 3 functionality allows supported routing features to be implemented within the network, helping organizations manage communication between different network segments.

Depending on the software license and configuration, enterprise networking features can include:

• VLAN management
• Inter-VLAN routing
• Access control
• Network segmentation
• Routing protocols
• Quality of Service (QoS)
• Network monitoring
• Traffic management

These capabilities make the C9300-48U suitable for organizations that require more than basic unmanaged switching.

Cisco StackWise-480 Technology

The Cisco Catalyst 9300 Series supports StackWise-480, Cisco’s high-speed stacking technology for compatible Catalyst 9300 switches.

Stacking allows multiple compatible switches to operate as a unified switching system, simplifying management and expanding network capacity.

StackWise-480 provides up to 480 Gbps of stacking bandwidth across supported configurations.

This capability is particularly useful for enterprise environments where network infrastructure needs to expand as the number of connected devices increases.

Organizations can deploy multiple switches while maintaining a coordinated switching architecture.

Cisco StackPower Technology

Cisco StackPower provides power-sharing capabilities between compatible switches in a stack.

This technology can help improve power management and provide additional flexibility when designing enterprise switching infrastructure.

StackPower is particularly relevant in deployments where power availability and redundancy are important considerations.

The exact supported power-sharing configuration depends on the hardware, installed power supplies, and deployment design.

Enterprise Network Security

The Cisco Catalyst 9300 Series is designed to support enterprise security requirements.

Cisco IOS XE provides a software platform for implementing network security policies and managing access to network resources.

Depending on software licensing and configuration, supported security capabilities may include:

• Access control lists
• Network segmentation
• Authentication integration
• Secure management
• Traffic monitoring
• Enterprise security policy enforcement

These features can help organizations control access to network resources and maintain visibility across their network infrastructure.

Cisco IOS XE Software

The Cisco Catalyst C9300-48U operates on the Cisco IOS XE software platform.

Cisco IOS XE provides the management and operating environment for configuring, monitoring, and maintaining the switch.

Network administrators can use the platform to manage interfaces, configure VLANs, implement routing, monitor network traffic, and apply supported security policies.

The software platform also supports enterprise automation and management workflows.

Software features and licensing availability depend on the selected Cisco software edition and configuration.

Enterprise Campus Networking

The Cisco Catalyst C9300-48U is designed for enterprise campus networking environments.

Enterprise campus networks typically include computers, wireless access points, IP phones, printers, security systems, and other connected devices.

The switch provides high-density Gigabit Ethernet connectivity while supporting advanced network management and modular uplinks.

Its UPOE capabilities can also simplify the deployment of compatible powered devices across enterprise environments.

This makes the C9300-48U suitable for organizations seeking a managed enterprise access switch.

High-Density Network Connectivity

With 48 Gigabit Ethernet ports, the Cisco Catalyst C9300-48U provides high-density connectivity for enterprise environments.

A single switch can connect a large number of devices within an office, campus building, or communication room.

This can help simplify network design and reduce the number of switching devices required for a deployment.

The modular uplink architecture also allows the switch to connect to higher-speed network infrastructure as needed.

Cisco Catalyst C9300-48U Technical Specifications

Note: Uplink ports are dependent on the selected network module. The 8 × 10GbE SFP+ configuration requires the appropriate compatible module.

Why Choose the Cisco Catalyst C9300-48U?

The Cisco Catalyst C9300-48U is a powerful option for businesses that require high-density Gigabit Ethernet connectivity, advanced network management, and UPOE capabilities.

Its combination of 48 Gigabit Ethernet ports, modular uplink architecture, enterprise Layer 2 and Layer 3 functionality, and Cisco IOS XE makes it suitable for professional networking environments.

The switch can support a wide range of enterprise devices while providing flexibility for network expansion through compatible uplink modules.

Its stacking capabilities also make it useful for organizations planning scalable network infrastructure.

Conclusion

The Cisco Catalyst C9300-48U is a powerful enterprise managed switch designed for high-density network connectivity, advanced switching, and scalable enterprise infrastructure.

With 48 Gigabit Ethernet UPOE ports, modular uplink support, Layer 2 and Layer 3 capabilities, Cisco StackWise-480, and Cisco IOS XE, it provides a flexible foundation for enterprise campus networks.

For organizations looking for a Cisco Catalyst 9300 48-port UPOE switch, the C9300-48U offers enterprise-grade connectivity, advanced management capabilities, and flexible uplink options for modern business networking environments.

Official Cisco Datasheet

Cisco Catalyst 9300 Series Official Datasheet