SG500X-48MP-K9-NA Cisco 48 Ports Manageable Layer 3 Switch

Cisco SG500X-48MP-K9-NA Layer 3 Managed Switch

The Cisco SG500X-48MP-K9-NA is a high-performance, fully manageable Layer 3 Ethernet switch designed to meet the evolving networking demands of growing enterprises. As part of the trusted Cisco 500 Series, this switch delivers advanced routing intelligence, scalable architecture, and enhanced Power over Ethernet Plus capabilities, making it suitable for unified communications, IP surveillance, wireless access points, and bandwidth-intensive applications.

General Device Information

• Manufacturer: Cisco 
• Model Number: SG500X-48MP-K9-NA
• Product Line: Cisco 500 Series
• Device Classification: Layer 3 Managed Network Switch

Power over Ethernet Plus Capabilities

• 48 integrated PoE+ ports for powering IP phones, cameras, and access points
• Optimized power allocation for efficient energy utilization
• Supports IEEE 802.3af and enhanced PoE+ standards

Stackable Architecture for Network Growth

• Built-in stacking capability for simplified management
• Stack port enabled for unified configuration and monitoring
• Supports scalable deployments without performance loss

Supported Ethernet Technologies

• 10/100/1000Base-T Ethernet support
• 10GBase-X for high-speed fiber connections
• Backward compatibility with existing network devices

Cabling and Media Support

• Twisted Pair cabling compatibility
• Optimized for Category 5 and higher cables
• Flexible deployment in structured cabling environments

Management Advantages

• Improved VLAN routing efficiency
• Optimized traffic prioritization
• Enterprise-level network visibility and control

Operating Conditions

• Operating temperature range: 32°F to 122°F (0°C to 50°C)
• Operational humidity tolerance: 10% to 90% non-condensing

Storage Environment Tolerance

• Storage temperature range: -4°F to 158°F (-20°C to 70°C)
• Storage humidity range: 10% to 90% non-condensing

Built-In Hardware Resources

• Standard system memory: 256 MB
• Flash storage capacity: 32 MB

Standards and Protocol Support

• IEEE 802.3 Ethernet standard
• IEEE 802.1D Spanning Tree Protocol
• IEEE 802.3af Power over Ethernet
• Additional IEEE networking compliance standards

Cisco Small Business SG500X Series Managed Switching

The Cisco SG500X-48MP-K9-NA belongs to the Cisco Small Business SG500X Series, a category of advanced manageable Layer 3 switches engineered for organizations that demand enterprise-grade networking features with simplified administration. This category focuses on high-density Gigabit Ethernet connectivity combined with integrated Power over Ethernet Plus capabilities and 10 Gigabit uplink performance. Switches in this class are designed to support converged networks where data, voice, and video traffic coexist and require consistent throughput, predictable latency, and intelligent traffic management.

The SG500X Series category emphasizes scalability and flexibility for growing business networks, branch offices, retail environments, educational campuses, and distributed enterprise edge deployments. The SG500X-48MP-K9-NA exemplifies this category by delivering forty-eight Gigabit Ethernet ports with PoE+ support and advanced Layer 3 routing functions that enable efficient traffic segmentation, inter-VLAN routing, and optimized bandwidth utilization. This category is positioned between entry-level managed switches and complex core switching platforms, offering a balance of affordability, performance, and robust feature sets.

High-Density Gigabit Ethernet Port Configuration

Within the SG500X category, high-density port availability is a defining characteristic. The Cisco SG500X-48MP-K9-NA represents this segment with forty-eight Gigabit Ethernet interfaces that support full-duplex operation and wire-speed forwarding. This density allows organizations to connect a wide range of endpoint devices such as desktop computers, IP phones, wireless access points, security cameras, and building automation systems without requiring additional access layer switches.

Category-level design focuses on minimizing port contention and ensuring consistent throughput across all connected devices. The switching fabric and internal architecture of the SG500X series are engineered to handle simultaneous high-volume traffic flows while maintaining low latency. This makes the category well-suited for bandwidth-intensive applications such as unified communications, high-definition video conferencing, and data synchronization across network segments.

Power over Ethernet Plus Integration

PoE+ functionality is a core element of this category, enabling the delivery of electrical power and data over a single Ethernet cable. The SG500X-48MP-K9-NA provides PoE+ across its forty-eight ports, aligning with the category’s objective of simplifying network infrastructure and reducing deployment costs. By eliminating the need for separate power supplies for endpoint devices, organizations can achieve cleaner installations and greater flexibility in device placement.

Category-level PoE management features allow administrators to monitor power consumption, prioritize critical devices, and implement power allocation policies that protect the switch from overload conditions. This ensures reliable operation of essential endpoints such as IP telephony systems and security equipment, even in environments with fluctuating power demands.

Layer 3 Managed Switching Capabilities

The SG500X series category is distinguished by its advanced Layer 3 features, which elevate it beyond basic Layer 2 managed switches. The Cisco SG500X-48MP-K9-NA supports static routing and dynamic routing protocols that enable efficient traffic flow between VLANs and network segments. This capability reduces reliance on external routers for inter-VLAN routing, improving performance and simplifying network design.

Layer 3 functionality within this category supports scalable network architectures where multiple subnets must communicate securely and efficiently. By handling routing decisions directly at the switch level, organizations can reduce latency and improve overall application responsiveness. This makes the SG500X category particularly suitable for midsize enterprise networks and complex branch office environments.

VLAN Segmentation and Network Isolation

Virtual LAN support is a foundational aspect of the SG500X managed switch category. VLAN segmentation allows network administrators to logically separate traffic based on organizational roles, departments, or application requirements. The Cisco SG500X-48MP-K9-NA supports extensive VLAN configurations that enhance security, reduce broadcast traffic, and improve overall network efficiency.

Category-level VLAN capabilities integrate seamlessly with Layer 3 routing functions, enabling secure communication between isolated segments when required. This design supports compliance requirements and best practices for network security while maintaining operational flexibility.

Quality of Service and Traffic Prioritization

Quality of Service features are integral to the SG500X category, ensuring that critical applications receive the bandwidth and low latency they require. The Cisco SG500X-48MP-K9-NA supports advanced QoS mechanisms that classify and prioritize traffic based on application type, port, or protocol.

Within this category, QoS functionality is optimized for environments where voice and video traffic must coexist with standard data transmissions. By prioritizing latency-sensitive traffic, the SG500X series helps maintain consistent call quality and smooth video streams even during periods of high network utilization.

10 Gigabit Uplink and Expansion Design

A defining feature of the Cisco SG500X category is the inclusion of integrated 10 Gigabit Ethernet uplinks. The SG500X-48MP-K9-NA incorporates high-speed uplink ports that enable seamless connectivity to core switches, data center infrastructure, or high-performance servers. This design supports future growth by providing sufficient bandwidth for expanding networks.

Category-level emphasis on uplink performance ensures that access layer switches do not become bottlenecks as network demands increase. The availability of 10 Gigabit uplinks allows organizations to aggregate traffic from multiple Gigabit ports and maintain consistent performance across the network.

Stackable Architecture and Network Scalability

Scalability is a central theme of the SG500X managed switch category. The Cisco SG500X-48MP-K9-NA supports stacking capabilities that allow multiple switches to operate as a single logical unit. This simplifies network management and enables incremental expansion without redesigning the entire infrastructure.

Stackable architecture within this category enhances redundancy and resiliency by allowing traffic to be redistributed automatically in the event of a switch failure. This approach supports high availability requirements in business-critical environments.

Resilient Design and High Availability

The SG500X category emphasizes reliability through features such as redundant power support, advanced link aggregation, and rapid spanning tree protocols. These capabilities help maintain network uptime and protect against common failure scenarios. The Cisco SG500X-48MP-K9-NA embodies this design philosophy by supporting multiple redundancy mechanisms that ensure continuous operation.

High availability features at the category level are particularly valuable for organizations that depend on uninterrupted network access for daily operations, customer interactions, and cloud-based applications.

Advanced Security Framework

Security is a critical component of the SG500X managed switch category. The Cisco SG500X-48MP-K9-NA incorporates comprehensive security features designed to protect network infrastructure and sensitive data. This category supports access control mechanisms, authentication protocols, and traffic filtering capabilities that help mitigate unauthorized access and potential threats.

By integrating security controls directly into the switching layer, the SG500X category enables proactive protection without the need for additional appliances. This approach simplifies network architecture while maintaining strong security posture.

Access Control and Authentication Features

Category-level support for access control lists and port-based authentication ensures that only authorized devices and users can access network resources. The Cisco SG500X-48MP-K9-NA allows administrators to define granular security policies that align with organizational requirements.

These features are particularly important in environments with a high number of connected devices, such as educational institutions and healthcare facilities, where network access must be carefully managed.

Deployment Flexibility and Use Case Alignment

The SG500X managed switch category is designed to accommodate a wide range of deployment scenarios. The Cisco SG500X-48MP-K9-NA is suitable for access layer, distribution layer, and collapsed core deployments in small to midsize networks. This versatility makes the category attractive to organizations seeking a unified switching solution.

By combining advanced Layer 3 features, high port density, PoE+ support, and scalable uplinks, the SG500X category addresses the needs of modern networks that must support diverse applications and rapid growth.

Enterprise Edge and Branch Office Networks

In enterprise edge and branch office environments, the SG500X category provides reliable connectivity and simplified management. The Cisco SG500X-48MP-K9-NA enables centralized policy enforcement and consistent performance across distributed locations.

This category supports secure connectivity to centralized data centers and cloud services, ensuring that branch offices can operate with the same efficiency and reliability as headquarters locations.