Cisco SG550X-48-K9 Ethernet Switch
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Cisco SG550X-48-K9 Small Business 48 Ports Switch Ethernet New

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Part Number#: SG550X-48-K9
List Price was: $24500.00
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Short Description:
SG550X-48-K9 Small Business SG550X-48 48 Ports 10/100/1000Base-T 1 Gigabyte Per Second (GBPS) Power Over Ethernet Plus (PoE+) Managed Layer 3 Rack-mountable with Combo 10 Gigabits Small Form-Factor Pluggable Plus (SFP+) Switch | Made by Cisco | New Factory Sealed
Product Condition:
New Retail Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

Product Overview of the Cisco 48 Ports Switch

In the dynamic landscape of networking solutions, the Cisco SG550X-48-K9 Small Business Switch stands out as a robust and versatile option. This managed Ethernet with 48 ports is designed to meet the evolving needs of small businesses Switch. In this comprehensive guide, we will delve into the key features, benefits, installation process, and performance capabilities of the Cisco SG550X-48-K9 switch, providing a detailed overview for both beginners and seasoned IT professionals.

Understanding the Basics: Cisco SG550X-48-K9

The Cisco SG550X-48-K9 is a managed switch designed specifically for small businesses. With 48 Ethernet ports, this switch offers an extensive network connectivity solution. Its "managed" designation means that it provides users with a high degree of control and customization over their network settings.

Key Features of Cisco SG550X-48-K9

48 Ports for Enhanced Connectivity

The 48 ports on the Cisco SG550X-48-K9 ensure that businesses have ample room for expanding their network infrastructure. This feature is particularly advantageous for growing enterprises or those with high connectivity demands.

Managed Switch Capabilities

As a managed switch, the Cisco SG550X-48-K9 empowers users with the ability to configure and control various network parameters. This includes monitoring traffic, setting up virtual LANs (VLANs), and implementing quality of service (QoS) for optimized performance.

Ethernet Technology

Leveraging Ethernet technology, this switch ensures fast and reliable data transmission within the network. Ethernet remains a standard for local area networks (LANs) due to its scalability and compatibility with a wide range of devices.

Layer 3 Routing

The SG550X-48-K9 supports Layer 3 routing, allowing for more efficient and intelligent routing of data between different subnets. This feature is crucial for managing larger networks and optimizing data traffic.

Benefits of choosing Cisco SG550X-48-K9


The 48 ports on the Cisco SG550X-48-K9 make it highly scalable, accommodating the growing connectivity needs of businesses. Whether an organization is expanding its team or adding more devices, this switch provides the flexibility required for seamless growth.

Customization and Control

The managed capabilities of the switch enable users to customize their network settings according to specific requirements. This level of control is essential for tailoring the network to meet the unique demands of a business.


Cisco is renowned for producing reliable networking equipment, and the SG550X-48-K9 is no exception. Its robust build and design ensure a stable and consistent network connection, reducing the likelihood of downtime.

Enhanced Performance with Layer 3 Routing

The Layer 3 routing feature enhances the overall performance of the network by providing more intelligent routing capabilities. This is particularly beneficial for businesses with complex network structures or those requiring efficient data traffic management.

Practical Applications

Small and Medium-Sized Businesses (SMBs)

The Cisco SG550X-48-K9 is an ideal solution for SMBs looking for a reliable and scalable network switch. Its 48 ports cater to the connectivity needs of smaller organizations, and the managed features allow for tailored network configurations.

Office Environments

In office settings where a multitude of devices need to be connected, such as computers, printers, and IP phones, the Cisco SG550X-48-K9 proves invaluable. Its scalability ensures that the network can adapt to the changing needs of a dynamic office environment.

Educational Institutions

Schools and universities often have diverse connectivity requirements, ranging from classrooms to administrative offices. The Cisco SG550X-48-K9, with its 48 ports and managed capabilities, can effectively handle the connectivity demands of educational institutions.

Retail Environments

Retail businesses, especially those with multiple points of sale, benefit from the scalability and reliability of the SG550X-48-K9. The switch can support the various devices used in retail, including cash registers, inventory scanners, and security cameras.

Performance and Reliability

Throughput and Speed

The Cisco SG550X-48-K9 offers impressive throughput and speed, ensuring that data can move swiftly through the network. This is essential for applications that demand high data transfer rates, such as video conferencing or large file transfers.

Quality of Service (QoS)

With QoS capabilities, the switch can prioritize certain types of traffic, ensuring that critical applications receive the necessary bandwidth. This is crucial for maintaining a consistent and reliable user experience, particularly in environments with diverse network demands.

Redundancy Features

Cisco switches often come equipped with redundancy features to enhance reliability. These may include features like hot-swappable power supplies and fans, ensuring that the switch can continue operating even in the event of a component failure.

Security Features

Network security is a top priority for businesses, and the Cisco SG550X-48-K9 includes security features to safeguard against unauthorized access and potential threats. This may involve features such as access control lists (ACLs) and secure management protocols.

General Information about the Cisco SG550X-48-K9

  • Manufacturer: Cisco
  • Model Number or SKU# SG550X-48-K9
  • Product Series: 550X
  • Product Type: Managed Switch

Key Specifications

  • Total Network Ports: 48
  • Uplink Port: Yes
  • Modular: Yes
  • Stack Port: Yes

Port/Expansion Slot Details

  • 4 x 10 Gigabit Ethernet Expansion Slot
  • 2 x 10 Gigabit Ethernet Uplink
  • 48 x Gigabit Ethernet Network


  • Media Types Supported: Twisted Pair, Optical Fiber
  • Ethernet Technologies: 10 Gigabit Ethernet, Gigabit Ethernet
  • Network Technologies: 10GBase-X, 10/100/1000Base-T, 10GBase-T

I/O Expansions

  • Total Expansion Slots: 4
  • Expansion Slot Type: SFP+
  • Shared SFP Slot: Yes
  • Number of SFP+ Slots: 4

Network & Communication

  • Layer Supported: 3
Management & Protocols
  • Manageable: Yes
  • Routing Protocols: RIP-2, IGMPv2, IGMP, IGMPv3, policy-based routing (PBR), MLDv2, MLD, VRRPv2, VRRPv3, CIDR
  • Remote Management Protocols: SNMP, RMON, Telnet, SNMP 3, SNMP 2c, HTTP, HTTPS, TFTP, SSH, SSH-2, CLI, SCP
Power Description
  • Power Source: Power Supply
  • Redundant Power Supply: Not Supported
  • Flow control, DHCP support, IGMP snooping, Syslog support, DoS attack prevention, port mirroring, DiffServ support, Weighted Round Robin (WRR) queuing, Broadcast Storm Control, IPv6 support, High Availability, Multicast Storm Control, Unicast Storm Control, firmware upgradable, sFlow, Spanning Tree Protocol (STP) support, Rapid Spanning Tree Protocol (RSTP) support, Multiple Spanning Tree Protocol (MSTP) support, DHCP snooping, Access Control List (ACL) support, Quality of Service (QoS), DHCP server, Dynamic ARP Inspection (DAI), reset button, STP Root Guard, Uni-Directional Link Detection (UDLD), DHCP relay, Remote Switch Port Analyzer (RSPAN), DHCP client, Management Information Base (MIB), dual firmware images, Class of Service (CoS), Generic Attribute Registration Protocol (GARP), Generic VLAN Registration Protocol (GVRP), Duplicated Address Detection, DiffServ Code Point (DSCP) support, Time-controlled ACLs support, 3MB packet buffer, Storm Control, IP source guard, ARP inspection, Internet Control Message Protocol (ICMP), Cisco Discovery Protocol, IGMP querier, VLAN Double Tagging (Q-in-Q), VLAN mirroring, DNS client, Voice VLAN, Secure Core Technology (SCT), LLDP-MED, Head-of-line (HOL) blocking, IP/Mac/Port Binding (IPMB), Secure Sensitive Data (SSD), Private VLAN, ISATAP tunnel support, RA guard, Guest VLAN, STP BPDU Guard
Compliant Standards
  • IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.3ae, IEEE 802.1s, IEEE 802.1ab (LLDP), IEEE 802.3an, IEEE 802.3az
  • Package Contents:
  • SG550X-48 Layer 3 Switch
  • Power Cord
  • Mounting Kit
  • Serial Cable
  • CD-ROM with User Documentation (PDF)
  • Quick Start Guide
Environmental Parameters
  • Operating Temperature: 32°F to 122°F
  • Storage Temperature: -4°F to 158°F
  • Operating Humidity: 10% to 90% (non-condensing)
  • Storage Humidity: 10% to 90% (non-condensing)

Outline, the Cisco SG550X-48-K9 Small Business 48 Ports Switch Ethernet Managed is a versatile and reliable networking solution for businesses seeking scalable and customizable connectivity. With its 48 ports, managed capabilities, and advanced features such as Layer 3 routing, this switch caters to the diverse needs of small and medium-sized enterprises. Its performance, reliability, and security features make it a compelling choice for various applications, including office environments, educational institutions, and retail settings. Whether you are looking to upgrade your current network infrastructure or establish a new one, the Cisco SG550X-48-K9 merits consideration for its robust design and comprehensive feature set.

Product Condition:
New Retail Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

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What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

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(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

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In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

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