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SG350-52-K9 - Cisco 52-Port Gigabit Managed Switch

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Availabilty: Out of stock

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Refurbished

Manufacturer: Cisco
Cisco

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Cisco SG350-52-K9: 48 Gigabit Ethernet ports plus 2 combo and 2 SFP uplinks, Layer 3 managed switch for SMB networks with advanced security and QoS.

The Cisco SG350-52-K9 is part of the Cisco Small Business 350 Series, a portfolio of affordable, fully managed Ethernet switches designed to give small and medium-sized businesses enterprise-class capabilities without enterprise-class cost. This 52-port model provides 48 10/100/1000 Mbps Gigabit Ethernet ports for wired device connectivity, plus 2 Gigabit copper/SFP combo ports and 2 dedicated SFP slots for flexible fiber or copper uplinks. It operates as a Layer 3 managed switch, supporting static routing, VLANs, QoS, and advanced security features such as ACLs and 802.1X authentication. With a switching capacity of 104 Gbps and a forwarding rate exceeding 77 million packets per second, it is built for reliable, high-speed data transfer across growing office networks. This model does not provide Power over Ethernet (PoE); customers requiring PoE should look at the SG350-52P or SG350-52MP variants.

  • Manufacturer: Cisco Systems
  • Product Family: Cisco Small Business 350 Series
  • Product Series: SG350
  • Model: SG350-52-K9
  • Product Type: Layer 3 Managed Gigabit Ethernet Switch
  • Total Ports: 52 (48 x 10/100/1000 RJ-45 + 2 Gigabit combo + 2 SFP)
  • Uplink Ports: 2 Gigabit copper/SFP combo ports, 2 SFP ports
  • PoE Support: None (Data only)
  • Switching Capacity: 104.0 Gbps
  • Forwarding Rate: Approximately 77.38 million packets per second (Mpps)
  • CPU: 800 MHz ARM processor
  • Memory (RAM): 512 MB
  • Flash Memory: 256 MB
  • Packet Buffer: 3 MB
  • MAC Address Table: 16,000 entries
  • VLAN Support: Up to 4096 VLANs, port-based and 802.1Q tag-based VLANs
  • Spanning Tree: 802.1d STP, 802.1w RSTP, 802.1s MSTP (8 instances)
  • Link Aggregation: 802.3ad LACP
  • Power Supply: 100–240V AC, 50–60 Hz, internal universal power supply
  • Cooling: 1 fan (active cooling)
  • Dimensions (W x D x H): 17.3 x 1.73 x 10.12 in (rack-mountable 1U)
  • Mounting: Rack-mountable, 19-inch standard rack brackets included
  • Security Features: ACLs, 802.1X authentication, IP Source Guard, DoS prevention, SSL encryption
  • Management: Web-based GUI, CLI (Textview), SNMP, Cisco FindIT Network Manager
  • Energy Efficiency: IEEE 802.3az Energy Efficient Ethernet support
  • Warranty: Limited lifetime warranty with next-business-day advance replacement
  • 48 Gigabit Ethernet RJ-45 ports for high-speed wired connectivity
  • 2 Gigabit copper/SFP combo ports plus 2 dedicated SFP ports for uplinks
  • Layer 3 static routing for inter-VLAN traffic management
  • Supports up to 4096 VLANs with port-based and 802.1Q tagging
  • 802.1w Rapid Spanning Tree and 802.1s Multiple Spanning Tree support
  • 802.3ad Link Aggregation Control Protocol (LACP) for link redundancy
  • Advanced ACL-based security and 802.1X client authentication
  • Embedded SSL encryption for secure management traffic
  • Web-based GUI and full CLI (Textview) management options
  • IGMP snooping to optimize multicast traffic delivery
  • Voice VLAN and QoS features for prioritizing voice/video traffic
  • IEEE 802.3az Energy Efficient Ethernet for reduced power consumption

Designed for small and medium-sized business networks requiring reliable, secure Gigabit connectivity with Layer 3 capabilities.

  • Core or access-layer switching for small-to-medium office networks
  • Aggregating multiple access switches in a branch office deployment
  • Supporting VoIP deployments with voice VLAN and QoS prioritization
  • Segmenting departmental traffic using VLANs and inter-VLAN routing
  • Providing fiber uplink connectivity between floors or buildings via SFP ports
  • Enabling secure guest and employee network segmentation with 802.1X
  • Building resilient network topologies using RSTP/MSTP and link aggregation
  • High-density 48-port Gigabit connectivity
  • Layer 3 routing for flexible network design
  • Lifetime warranty reduces total cost of ownership
  • Advanced security protects sensitive business data
  • Flexible fiber/copper uplinks via combo and SFP ports
  • Energy-efficient operation lowers power costs
Interface Type Details
Gigabit Ethernet (RJ-45) 48 x 10/100/1000 Mbps auto-sensing ports
Combo Uplink 2 x Gigabit Ethernet copper/SFP combo ports
SFP 2 x dedicated Gigabit SFP slots for fiber/copper transceivers
Management Web GUI, CLI (Textview), SNMP-based management access
  • Form Factor: 1U rack-mountable enclosure
  • Dimensions (W x D x H): 17.3 x 1.73 x 10.12 inches
  • Cooling: 1 internal fan
  • Power Input: 100–240V AC, 50–60 Hz internal universal power supply

Per available documentation, this product is part of the Cisco Small Business 350 Series and is compatible with the following:

  • Cisco Small Business 350 Series managed switches (SG350/SF350 family)
  • Cisco FindIT Network Manager for centralized device discovery and management
  • Standard SFP and SFP+ compatible Gigabit transceivers on combo/SFP ports
  • Cisco Small Business Support Community and technical support tools
  • Standard 19-inch equipment racks via included mounting brackets
  • IEEE 802.1X-compliant RADIUS authentication servers
  • IEEE 802.3ad/LACP compliant switches for link aggregation uplinks

Note: This is a non-PoE model; for Power over Ethernet support, related variants such as SG350-52P (PoE+) or SG350-52MP (Max-PoE) should be used instead.

  • Cisco SG350-52-K9 52-port switch unit
  • Power cable
  • Rack-mounting brackets and screws
  • Rubber footpads (for desktop placement)
  • Quick start/installation guide

Q: Does the Cisco SG350-52-K9 support Power over Ethernet (PoE)?

A: No, this model does not include PoE. Customers needing PoE should choose the SG350-52P (PoE+) or SG350-52MP (Max-PoE) variants.

Q: How many ports does the SG350-52-K9 have in total?

A: It offers 52 ports total: 48 Gigabit Ethernet RJ-45 ports plus 2 Gigabit copper/SFP combo ports and 2 dedicated SFP ports for uplinks.

Q: Is the SG350-52-K9 a Layer 2 or Layer 3 switch?

A: It is a Layer 3 managed switch, supporting static routing along with VLANs, QoS, and advanced security features.

Q: What is the switching capacity and forwarding rate of this switch?

A: The switch provides a switching capacity of 104.0 Gbps and a forwarding rate of approximately 77.38 million packets per second.

Q: Can the SG350-52-K9 be managed via a command-line interface?

A: Yes, in addition to a web-based GUI, it supports a full command-line interface option called Textview for CLI-preferring administrators.

Q: What warranty does Cisco provide for the SG350-52-K9?

A: Cisco backs the 350 Series with a limited lifetime warranty that includes next-business-day advance replacement where available.

Q: What kind of security features are included on this switch?

A: It includes access control lists (ACLs), 802.1X authentication, IP Source Guard, DoS attack prevention, and embedded SSL encryption for management traffic.

Q: Is the SG350-52-K9 rack-mountable?

A: Yes, it is a 1U rack-mountable switch and ships with brackets for installation in standard 19-inch equipment racks.

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SG350-52-K9 - Cisco 52-Port Gigabit Managed Switch