SG500X-48MP-K9-NA Cisco Layer 3 48 Ports Manageable 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 for growing enterprise networks and advanced small business infrastructures. As part of the reliable Cisco 500 Series, this switch delivers enhanced scalability, intelligent traffic handling, and robust Power over Ethernet Plus (PoE+) capabilities to support modern network demands.

Product Identification

• Brand: Cisco
• Part Number: SG500X-48MP-K9-NA
• Series: Cisco 500 Series
• Switch Category: Layer 3 Managed Network Switch

Ethernet Port Details

• 48 Gigabit Ethernet RJ-45 network ports
• 48 integrated PoE+ ports for powered device support
• Optimized for simultaneous data and power transmission

10 Gigabit SFP+ Expansion Slots

• 4 x 10 Gigabit Ethernet SFP+ slots
• Ideal for high-speed uplinks and backbone connections
• Supports long-distance fiber and high-throughput networking

Supported Ethernet Technologies

• 10/100/1000Base-T Ethernet
• 10GBase-X high-speed fiber connectivity
• Backward compatibility with Gigabit Ethernet networks

Compatible Cabling Types

• Twisted Pair cabling
• Category 5 and higher network cables

Temperature Tolerance

• Operating temperature range: 32°F to 122°F (0°C to 50°C)
• Storage temperature range: -4°F to 158°F (-20°C to 70°C)

Humidity Specifications

• Operational humidity: 10% to 90% non-condensing
• Storage humidity: 10% to 90% non-condensing

Integrated Memory Resources

• Standard RAM: 256 MB
• Flash storage: 32 MB

Regulatory and IEEE Compliance

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

Cisco Managed Layer 3 Switching Architecture for Expanding 

The Cisco SG500X-48MP-K9-NA Manageable Layer 3 48 Ports Switch belongs to a category of enterprise-grade small business switches designed to deliver advanced routing intelligence, high-density Power over Ethernet, and scalable performance for growing network environments. This category focuses on providing Layer 3 capabilities within a compact, rack-mountable form factor that supports converged data, voice, and video traffic. Devices in this class are engineered to bridge the gap between basic Layer 2 switches and full enterprise core switches, offering dynamic routing, traffic segmentation, and resilient network control without unnecessary operational complexity.

The SG500X series category emphasizes flexibility, enabling organizations to deploy advanced networking features such as inter-VLAN routing, policy-based traffic handling, and redundancy mechanisms while maintaining cost efficiency. These switches are frequently selected for medium-sized offices, distributed branch networks, hospitality environments, and educational campuses where multiple connected devices require consistent power delivery and predictable performance.

48-Port Gigabit Ethernet Density with Integrated PoE+

High port density is a defining characteristic of the Cisco SG500X-48MP-K9-NA switch category. Forty-eight Gigabit Ethernet ports allow organizations to connect a large number of endpoints from a single access layer device. This category supports network expansion without frequent hardware replacements, reducing infrastructure costs and simplifying network design. The availability of Gigabit speeds across all ports ensures that bandwidth-intensive applications, such as IP surveillance systems and multimedia collaboration tools, operate without congestion.

Integrated Power over Ethernet Plus support is central to this switch category. The SG500X-48MP-K9-NA provides centralized power delivery to connected devices such as IP phones, wireless access points, video cameras, and building automation systems. This capability eliminates the need for external power adapters, streamlining installations and reducing cable clutter. The PoE+ design supports higher power budgets per port, enabling modern devices with increased power requirements to function reliably within the same network fabric.

Optimized Power Management for Mixed Device Environments

Switches in this category are built with intelligent power allocation mechanisms that automatically manage available power resources. The Cisco SG500X-48MP-K9-NA can detect connected device requirements and distribute power accordingly, ensuring operational stability even in environments with diverse endpoint types. Advanced power negotiation prevents overload conditions and allows administrators to prioritize critical devices, such as security cameras and wireless controllers, ensuring uninterrupted service delivery.

Layer 3 Routing Capabilities for Network Segmentation

The category of manageable Layer 3 switches represented by the SG500X-48MP-K9-NA includes support for static routing and dynamic routing protocols that enhance traffic flow efficiency. Layer 3 functionality allows the switch to route traffic between VLANs internally, reducing reliance on external routers and lowering network latency. This design supports segmented network architectures where different departments, applications, or security zones are logically separated while remaining seamlessly connected.

By enabling inter-VLAN routing at the switch level, this category provides improved performance for east-west traffic patterns common in modern business environments. Applications that require frequent communication between servers, workstations, and storage systems benefit from reduced hops and optimized packet handling.

Advanced VLAN Design and IP Routing Support

The SG500X-48MP-K9-NA category supports extensive VLAN configurations, allowing administrators to create isolated broadcast domains tailored to organizational needs. This segmentation enhances security, minimizes broadcast traffic, and simplifies network troubleshooting. Combined with IP routing features, VLANs can be interconnected based on defined policies, ensuring controlled access between network segments.

Dynamic Routing and Redundancy Awareness

Layer 3 switches in this category are designed to support routing intelligence that adapts to network topology changes. While maintaining simplicity, the SG500X family allows administrators to configure routing behaviors that optimize path selection and provide redundancy awareness. This ensures that critical traffic continues to flow even when links or devices experience disruptions.

High-Speed Uplink Connectivity with 10 Gigabit Support

A key differentiator of the Cisco SG500X-48MP-K9-NA switch category is the inclusion of high-speed uplink interfaces designed to eliminate network bottlenecks. Dedicated 10 Gigabit Ethernet uplinks provide seamless connectivity to aggregation switches, servers, or network-attached storage systems. This ensures that the high density of Gigabit access ports can operate at full capacity without congestion at the uplink layer.

The availability of multiple uplink options within this category supports flexible network architectures, including star, ring, and hierarchical topologies. Organizations can scale bandwidth as demand grows, protecting their investment over time.

Stacking and Scalability Options

Scalability is a foundational principle of the SG500X switch category. The ability to stack multiple switches allows administrators to manage several devices as a single logical unit. This stacking functionality simplifies configuration, monitoring, and firmware management while increasing total port availability. As networks expand, additional switches can be added without redesigning the entire infrastructure.

Resilient Bandwidth Aggregation

Stacked configurations within this category enable bandwidth aggregation and redundancy across multiple physical units. Traffic can be distributed across stack members, improving performance and resilience. If one unit experiences a failure, traffic is automatically rerouted, maintaining network availability.

Enterprise-Grade Security Features for Access Layer Protection

Security is a core focus of the Cisco SG500X-48MP-K9-NA switch category. These switches are designed to protect network integrity at the access layer through comprehensive security controls. Authentication mechanisms ensure that only authorized devices and users can access the network, reducing the risk of unauthorized entry.

Traffic control features allow administrators to define policies that regulate how data flows through the network. This includes isolating sensitive resources, limiting access to specific services, and monitoring traffic patterns for anomalies.

Access Control and Network Visibility

The category supports advanced access control capabilities that enhance visibility into network activity. Administrators can monitor connected devices, track bandwidth usage, and identify potential security threats in real time. This visibility is essential for maintaining compliance with organizational policies and regulatory requirements.

Protection Against Common Network Attacks

Layer 3 manageable switches in this category incorporate safeguards against common network attacks such as spoofing, flooding, and unauthorized scanning. By enforcing traffic validation and rate control, the SG500X-48MP-K9-NA helps maintain stable network operations even in high-demand environments.

Quality of Service for Voice, Video, and Data Convergence

The Cisco SG500X-48MP-K9-NA switch category is optimized for converged networks where voice, video, and data coexist. Quality of Service capabilities allow administrators to prioritize latency-sensitive traffic, ensuring clear voice calls and smooth video streaming even during peak usage periods. This prioritization is essential for organizations deploying unified communications platforms.

Traffic classification and scheduling mechanisms ensure that mission-critical applications receive the necessary bandwidth while less critical traffic is managed efficiently. This balance enhances user experience and overall network reliability.

Optimized Performance for Real-Time Applications

Switches in this category are engineered to handle real-time traffic with minimal delay and packet loss. The SG500X-48MP-K9-NA can recognize application types and apply predefined policies that align with business priorities. This ensures consistent performance across a wide range of use cases.

Bandwidth Management and Traffic Shaping

Advanced traffic shaping features enable precise control over bandwidth allocation. Administrators can define limits and guarantees for specific applications or user groups, ensuring equitable resource distribution and preventing any single workload from dominating network capacity.

Centralized Management and Operational Simplicity

Ease of management is a defining attribute of the SG500X switch category. These devices provide intuitive management interfaces that simplify configuration and monitoring tasks. Centralized management capabilities allow administrators to oversee multiple switches from a single platform, reducing operational overhead.

Automation features within this category streamline routine tasks such as firmware updates, configuration backups, and policy enforcement. This reduces the likelihood of configuration errors and ensures consistent network behavior.

Web-Based and CLI Management Options

The category supports both graphical and command-line management interfaces, accommodating administrators with varying levels of expertise. Web-based dashboards provide visual insights into network performance, while CLI access enables granular control for advanced configurations.

Energy Efficiency and Sustainable Network Design

The Cisco SG500X-48MP-K9-NA switch category incorporates energy-efficient technologies designed to reduce power consumption without compromising performance. Intelligent power management features adjust energy usage based on network activity, contributing to lower operational costs and reduced environmental impact.

These switches support modern energy standards, making them suitable for organizations seeking sustainable IT solutions while maintaining high performance and reliability.

Adaptive Power Usage and Thermal Management

Adaptive power usage allows the switch to optimize energy consumption during periods of low activity. Enhanced thermal management ensures stable operation in diverse deployment environments, extending hardware lifespan.

Deployment Scenarios and Industry Applications

The SG500X-48MP-K9-NA manageable Layer 3 switch category is versatile, supporting a wide range of deployment scenarios. From corporate offices and branch locations to hospitality venues and educational institutions, these switches provide the performance and reliability needed to support diverse applications.

The ability to deliver power, routing intelligence, and high-speed connectivity from a single device makes this category particularly suitable for environments with limited space and growing connectivity demands.