Cisco SG355-10P-K9 Managed Switch
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Cisco SG355-10P-K9 10 Ports Managed Switch Layer3 Refurbished

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Part Number#: SG355-10P-K9
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Short Description:
SG355-10P-K9 Small Business SG355-10 Ports 8 Power Over Ethernet Plus (PoE+) Ethernet Ports & 2 Combo Gigabit Rack-mountable with 2x Shared Small Form-factor Pluggable (SFP) Ports Layer 3 Managed Switch | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Product Overview for the Cisco SG355-10P-K9 10 Ports Managed Switch

One such notable offering is the Cisco SG355-10P-K9 Small Business SG355-10, a Layer 3 Managed Switch designed to meet the diverse needs of small businesses. The Cisco SG355-10P-K9 is a member of the Small Business SG355-10 series, known for its scalability, reliability, and advanced management capabilities. This particular model stands out with its Layer 3 Managed Switch functionality, making it suitable for businesses that require efficient routing capabilities within their network infrastructure.

10 Ports Layer3 Switch

The SG355-10P-K9 boasts 10 ports in total, featuring 8 Power Over Ethernet Plus (PoE+) Ethernet ports. These PoE+ ports enable the switch to deliver both data and electrical power to connected devices, simplifying cable management and reducing the need for additional power sources. Additionally, there are 2 Combo Gigabit ports for versatile connectivity options.

Rack-Mountable Design for Efficient Space Utilization

The rack-mountable design of the SG355-10P-K9 is a crucial feature for businesses where space optimization is essential. Here's why this design is noteworthy:

Space Efficiency

Rack-mounted switches allow for vertical stacking of equipment, optimizing the use of limited space in server rooms or network closets. This is especially advantageous for small businesses with constrained physical footprints.

Organization and Accessibility

Rack-mounted switches contribute to a more organized and accessible network setup. Cables can be neatly organized, reducing the risk of accidental disconnections and easing processes.


As businesses grow, the demand for network infrastructure increases. The rack-mountable design of the SG355-10P-K9 facilitates easy scalability, allowing additional switches and equipment to be added to the rack as needed.

Small Form-factor Pluggable (SFP) Ports for Enhanced Connectivity

The SG355-10P-K9 goes beyond traditional Ethernet connectivity by offering 2 Shared Small Form-factor Pluggable (SFP) ports. Here's why these ports are valuable:

Fiber Optic Connectivity

SFP ports support the use of fiber optic cables, which offer several advantages over traditional copper cables. Fiber optic connections provide higher bandwidth, longer reach, and better resistance to electromagnetic interference.

Versatility in Network Design

The inclusion of SFP ports adds a layer of versatility to the switch, allowing businesses to tailor their network infrastructure to specific needs. Whether it's connecting buildings across a campus or establishing high-speed links between switches, SFP ports offer flexibility in network design.

Improved Performance and Reliability

Fiber optic connections are known for their reliability and consistent performance. By incorporating SFP ports, the SG355-10P-K9 enhances the overall reliability of the network, especially in demanding or mission-critical applications.

Routing and Switching Protocols

The Cisco Small Business SG355-10P 10-Ports Manageable Layer 3 Switch SG355-10P-K9 is a Layer 3 switch that supports various routing and switching protocols. These protocols allow the switch to perform advanced network functions, such as routing between VLANs, managing Quality of Service (QoS), and providing redundancy.

  • Internet Protocol (IP) Routing: The switch supports both static and dynamic IP routing, which allows it to determine the best path for data to travel through the network. The switch supports Routing Information Protocol (RIP) and Open Shortest Path First (OSPF) for dynamic routing between VLANs.
  • Virtual LAN (VLAN) Support: The switch supports up to 256 VLANs, which allow for the segmentation of the network into smaller, more manageable sections. This feature allows for greater security and control over network traffic.
  • Quality of Service (QoS): The switch supports advanced QoS features, such as traffic prioritization and bandwidth management. These features ensure that critical network traffic, such as voice and video, is given priority over less important traffic, such as file transfers.
  • Link Aggregation Control Protocol (LACP): The switch supports LACP, which allows multiple physical links to be combined into a single logical link. This provides increased bandwidth and redundancy, as well as failover protection in case of a link failure.
  • Dynamic Host Configuration Protocol (DHCP) Server: The switch includes a built-in DHCP server, which can be used to automatically assign IP addresses to devices on the network. This simplifies IP address management and reduces the chance of IP address conflicts.
  • Network Time Protocol (NTP): The switch supports NTP, which allows for synchronization of the switch's internal clock with an external time source. This ensures accurate timekeeping on the switch and across the network.

These protocols can be enabled or disabled through the switch's web-based management interface. This gives network administrators the flexibility to configure the switch to meet the specific needs of their network.

Network Management and Security Features

The Cisco Small Business SG355-10P 10-Ports Manageable Layer 3 Switch SG355-10P-K9 also provides various Network Management and Security features.

  • Web-based Management Interface: The switch includes a web-based management interface that allows network administrators to configure, monitor, and switch remotely. This interface provides a user-friendly and intuitive interface for managing the switch.
  • SNMP Support: The switch supports Simple Network Management Protocol (SNMP), which allows for remote management and monitoring of the switch using SNMP-compatible network management systems.
  • Access Control Lists (ACLs): The switch supports ACLs, which allow network administrators to set rules for controlling access to the network. This feature can be used to restrict access to specific IP addresses, ports, and protocols, providing an additional layer of security to the network.
  • SSH/SSL Support: The switch supports Secure Shell (SSH) and Secure Sockets Layer (SSL) protocols, which allow for secure remote management of the switch. This provides an additional layer of security, as all communications between the switch and a remote management system are encrypted.
  • Port Security: The switch supports port security, which allows network administrators to set a maximum number of MAC addresses per port, and also to configure the switch to take specific actions when the maximum number of MAC addresses is exceeded.
  • IEEE 802.1X: The switch supports IEEE 802.1X, which is a network access control standard that requires devices connecting to the network to provide credentials before gaining access. This feature can be used to restrict access to the network to only authorized devices.
  • Denial-of-service (DoS) Protection: The switch protects against various types of DoS attacks, such as IP spoofing, IP-directed broadcast, and TCP-SYN flood attacks.

Power over Ethernet (PoE+) Capabilities

The Cisco Small Business SG355-10P 10-Ports Manageable Layer 3 Switch SG355-10P-K9 supports Power over Ethernet (PoE+) technology, which allows the switch to deliver power and data to devices over Ethernet cables. This eliminates the need for separate power cables for devices such as IP phones, wireless access points, and security cameras.

  • PoE+ Power Budget: The switch has a PoE+ power budget of 370W, which means it can supply up to 370 watts of power to PoE-enabled devices connected to the switch. This allows for the connection of multiple PoE-enabled devices to the switch.
  • PoE Port Configuration: The switch has 10 Gigabit Ethernet ports, out of which 8 ports are PoE+ capable, which allows you to power PoE-enabled devices such as IP phones, wireless access points, and security cameras through the Ethernet cables. This eliminates the need for separate power cables and simplifies installation.
  • PoE Power Allocation: The switch allows you to set the maximum power allocation for each PoE+ port, which means you can configure the switch to allocate different levels of power to different devices depending on their power requirements. This ensures that devices receive the power they need, without overloading the switch.
  • PoE Power Management: The switch supports advanced PoE power management features, such as power monitoring and power fault detection, which allows network administrators to monitor the power consumption of PoE-enabled devices and any power-related issues.
  • PoE Scheduling: The switch supports PoE scheduling, which allows you to configure the switch to turn PoE on or off on specific ports at specific times. This feature can be used to conserve power and reduce energy costs.

General Information about this Cisco SG355-10P-K9 Ethernet Switch

  • Manufacturer: Cisco
  • Part Number or SKU# SG355-10P-K9
  • Product Series: 350
  • Product Type: Ethernet Switch

Technical Information of Managed Switch

  • Ethernet Technology: Gigabit Ethernet
  • Network Technology: 1000Base-X
  • Network Technology: 10/100/1000Base-T
  • Enclosure Type: Rack-mountable 1U
  • Power Over Ethernet (PoE): PoE+

Interfaces / Ports of Ethernet Switch

  • Total Number of Network Ports: 10
  • Form Factor: Desktop
  • Ports: 8 x 10/100/1000 (PoE+) + 2 x Kombi-Gigabit-SFP
  • Uplink Port: Yes
  • Modular: Yes
  • Stack Port: No
  • Port/Expansion Slot Details: 2 x Gigabit Ethernet Expansion Slot
  • Port/Expansion Slot Details: 10 x Gigabit Ethernet Network

Media & Performance for 10 Ports Switch

  • Media Type: Supported Optical Fiber
  • Media Type: Supported Twisted Pair
  • Switching capacity: 20 Gbps
  • Forwarding performance (64-byte packet size): 14.88 Mpps
  • Jumbo Frame Support: 9216 bytes
  • Capacity Active VLANs: 4096

I/O Expansions

  • Number of Total Expansion Slots: 2
  • Expansion Slot Type: SFP
  • Shared SFP Slot: Yes
  • Number of SFP Slots: 2
Network & Communication
  • Layer Supported: 3
Management & Protocols
  • Manageable: Yes
  • Routing Protocol: Static IPv4 routing, CIDR
  • Remote Management Protocol: SNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, SNMP 2c, HTTP, HTTPS, TFTP, SSH, CLI
Power Description
  • Power Source: Power Supply
  • Redundant Power Supply Supported: No
  • PoE Budget: 62 Watts

Outline, the Cisco SG355-10P-K9 Small Business Switch stands as a formidable solution in the realm of networking. Its combination of PoE+ capabilities, Gigabit speeds, Layer 3 management, and versatile connectivity options makes it a versatile and reliable choice for businesses of various sizes. From streamlined installation to robust security features, this switch addresses the evolving needs of modern networking environments. As businesses continue to embrace digital transformation, having a network infrastructure powered by Cisco's SG355-10P-K9 ensures a solid foundation for connectivity, efficiency, and growth.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.


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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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