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Cisco SG 300 48-Port Gigabit Managed Switch 48 PoE+ Ports 375 Watts 2 GbE & 2 combo Gb SFP Slots

The Cisco 300 Series is broad portfolio of fixed-configuration managed Ethernet switches. Models are available with 8 to 48 ports of Fast Ethernet and 10 to 52 ports of Gigabit Ethernet connectivity, providing optimal flexibility to create exactly the right network foundation for your business. However, unlike other small business switching solutions that provide managed network capabilities only in the costliest models, all Cisco 300 Series Switches support the advanced security management capabilities and network features you need to support business-class data, voice, security, and wireless technologies.

  • High performance and reliability
  • Fast, easy setup and configuration
  • Strong security
  • Power over Ethernet
  • IP telephony support
  • Networkwide Automatic Voice Deployment
  • Advanced network management capabilities
  • Cisco Limited Lifetime Hardware Warranty

Key Features

  • Fifty (50) 10/100/1000 Gigabit RJ-45 ports with auto medium dependent interface (MDI) and MDI crossover (MDI-X) cable detection
  • Forty-Eight (48) PoE+ ports, maximum of 30W per port, total PoE+ budget of 375W
  • Two (2) Combo mini-GBIC port for network expansion of consoludation
  • Nonblocking, store-and-forward switching mechanism
  • Simplified QoS management enabled by advanced queuing techniques using 802.1p, differentiated services (DiffServ), or type of service (ToS) prioritisation schemes enhances the performance of real-time applications such as voice and video
  • Configuration and monitoring from a standard web browser with WebView management
  • Secure remote management of the switch via Secure Shell (SSH) and SSL secure channel network protocols
  • 802.1Q-based VLANs enable segmentation of networks for improved performance and security
  • Private VLAN Edge (PVE) for simplified network isolation of guest connections or autonomous networks
  • Automatic configuration of VLANs across multiple switches through Generic VLAN Registration Protocol (GVRP) and Generic Attribute Registration Protocol (GARP)
  • Automatic port configuration through auto MDI/MDIX and 802.1ab with Link Layer Discovery Protocol (LLDP) and Universal Plug and Play (UPnP) support
  • User/network port-level security via 802.1X authentication and MAC-based filtering
  • Increased bandwidth (up to 8x) and added link redundancy with Link Aggregation Control Protocol (LACP)
  • Enhanced rate-limiting capabilities provide control, including back pressure to control the rate at which data can flow into and out of a port
  • Multicasting, broadcasting, and flooding control
  • Port mirroring for noninvasive monitoring of switch traffic
  • Simple Network Management Protocol (SNMP) versions 1, 2c, and 3 and Remote Monitoring (RMON) support
  • Fully rack mountable using the included rack-mounting hardware

High performance and reliability
All Cisco SG 300-52P 50-Port Gigabit Ethernet Switches have been rigorously tested to deliver the high availability and performance you expect from a Cisco switch. The solutions speed up file transfer times and improve slow, sluggish networks, while keeping your vital business applications available and preventing costly downtime. As a managed switching solution, the Cisco SG 300-52P also gives you the flexibility to manage and prioritise high-bandwidth traffic such as voice. That means you can empower your employees with state-of-the-art communication and productivity solutions, without draining the performance of your other business applications.

Power over Ethernet
This Cisco SG 300-52P Switch comes with 48 PoE+ ports, this capability simplifies advanced technology deployments such as IP telephony, wireless, and IP surveillance by allowing you to connect and power network endpoints over a single Ethernet cable. With no need to install separate power supplies for IP phones or wireless access points, you can take advantage of advanced communications technologies more quickly, and at a lower cost. The maximum PoE+ port is 30W per port, with a total PoE+ budget of 375W

Secure Desktop Connectivity
The Cisco SG 300-52P Switch can simply and securely connect employees working in small offices with each other and with all of the servers, printers, and other devices they use. High performance and reliable connectivity helps speed file transfers and data processing, improves network uptime, and keeps your employees connected and productive. Additionally, the Cisco SG 300-52P Switch provides a high level of security and give you fine-grained control to safeguard your network from unauthorised users. Advanced security features include:

  • Embedded security to protect management data traveling to and from the switch and encrypt network
  • Extensive access control lists (ACLs) to restrict sensitive portions of the network from unauthorised users
    and guard against network attacks
  • Guest virtual LANs (VLANs) to let you provide Internet connectivity to nonemployee users while isolating
    critical business services from guest traffic
  • Support for advanced network security applications such as IEEE 802.1X port security to tightly limit access
    to specific segments of your network

Unified Communications
As a managed network solution, the Cisco SG 300-52P Switch provides the performance and advanced traffic-handling intelligence you need to deliver all communications and data over a single network. Cisco offers a complete portfolio of IP telephony and other unified communications products designed for small businesses. SG 300-52P Switches have been rigorously tested to help ensure easy integration and full compatibility with these and other products, providing a complete small business solution.

IP Telephony Support
Cisco SG 300-52P Switches include embedded QoS intelligence to prioritise delaysensitive services such as voice and video, simplify unified communications deployments, and help ensure consistent network performance for all services. For example, automated voice VLAN capabilities let you plug any IP phone (including third-party phones) into your IP telephony network and receive an immediate dial tone. The switch automatically configures the device with the right VLAN and QoS parameters to prioritise voice traffic.

Highly Secure Guest Connectivity
A Cisco SG 300-52P Switch let you extend highly secure network connectivity to guests in a variety of settings, such as a hotel, an office waiting room, or any other area open to nonemployee users. Using powerful but easy-to-configure security and traffic segmentation capabilities, you can isolate your vital business traffic from guest services and keep guests’ network sessions private from each other.

Optimal Energy Efficiency
The Cisco SG 300-52P Switch is designed with a variety of power-saving features across all models, providing the industry’s broadest portfolio of “green” switches. These Cisco SG 300-52P Switches optimise power use to protect the environment and reduce energy costs, without compromising performance. Powersaving features include:

  • The latest application-specific integrated circuits (ASICs), using low-power 65-nanometer technology (these
    chipsets allow for lower power consumption and thinner, more efficient designs)
  • Embedded intelligence to adjust signal strength based on cable length
  • Fanless design in most models, which reduces power consumption, increases reliability, and provides quieter operation



  • 50 Gigabit Ethernet RJ45 (48 PoE+ ports)
  • 2 x Combo mini-GBIC Ports


  • Supports PoE+ with a maximum of of 15W per port and a total PoE+ budget of 375W


  • Secure Shell (SSH) Protocol
    • SSH secures Telnet traffic to and from the switch
  • Secure Sockets Layer
    • (SSL) SSL support: Encrypts all HTTPS traffic, allowing highly secure access to the browser-based managemen GUI in the switch
  • IEEE 802.1X (Authenticator role)
    • 802.1X: RADIUS authentication and accounting, MD5 hash; guest VLAN; unauthenticated VLAN,
    • single/multiple host mode and single/multiple sessions
    • Supports time-based 802.1X
    • Dynamic VLAN assignment
  • Layer 3 isolation
    • Allow/disallow routing between IP subnets or directly connected IP networks
  • Layer 2 isolation Private VLAN Edge (PVE) with community VLAN
    • PVE (also known as protected ports) provides Layer 2 isolation between devices in the same VLAN, supports multiple uplinks
  • Port security
    • Locks MAC addresses to ports, and limits the number of learned MAC addresses
    • Supports RADIUS and TACACS authentication. Switch functions as a client
  • Storm control
    • Broadcast, multicast, and unknown unicast
  • DoS prevention
    • DoS attack prevention
  • Congestion avoidance
    • A TCP congestion avoidance algorithm is required to minimize and prevent global
    • CP loss synchronisation.
  • ACLs
    • Support for up to 512 rules
    • Drop or rate limit based on source and destination MAC, VLAN ID or IP address, protocol, port, differentiated services code point (DSCP)/IP precedence, TCP/ UDP source and destination ports, 802.1ppriority, Ethernet type, Internet Control Message Protocol (ICMP) packets, IGMP packets, TCP flag

Quality of Service

  • Priority levels
    • 4 hardware queues
  • Scheduling
    • Strict priority and weighted round-robin (WRR) Queue assignment based on DSCP and class of service (802.1p/CoS)
  • Class of service
    • Port based; 802.1p VLAN priority based; IPv4/v6 IP precedence/type of service (ToS)/DSCP based;
      Differentiated Services (DiffServ); classification and re-marking ACLs, trusted QoS
  • Rate limiting
    • Ingress policer; egress shaping and rate control; per VLAN, per port, and flow based

Firmware upgrade

  • Web browser upgrade (HTTP/HTTPS) and TFTP
  • Upgrade can be initiated through console port as well
  • Dual images for resilient firmware upgrades

Port mirroring

  • Traffic on a port can be mirrored to another port for analysis with a network analyzer or RMON probe. up to 8 source ports can be mirrored to one destination port. A single session is supported.

VLAN mirroring

  • Traffic from a VLAN can be mirrored to a port for analysis with a network analyser or RMON probe. Up to 8 source VLANs can be mirrored to one destination port. A single session is supported.

DHCP (Options 66, 67, 82, 129, and 150)

  • DHCP Options facilitate tighter control from a central point (DHCP server) to obtain IP address, autoconfiguration
  • (with configuration file download), and DHCP relay,

Text-editable config files

  • Config files can be edited with a text editor and downloaded to another switch, facilitating easier mass deployment


  • Simplified configuration of QoS and security capabilities

Secure copy

  • Securely transfer files to and from the switch

Textview CLI

  • Scriptable command-line interface

Cloud services

  • Support for Small Business Toolbar application

Other management Traceroute

  • Single IP management; HTTP/HTTPS; SSH; RADIUS; port mirroring; TFTP upgrade; DHCP client; BOOTP; SNTP; Xmodem upgrade; cable diagnostics; ping; syslog; Telnet client (SSH secure support)

Power Efficiency

  • Energy Detect Automatically turns off power off on Gigabit Ethernet RJ-45 port when detecting link down
  • Active mode is resumed without loss of any packets when the switch detects the link up
  • Cable length detection Adjusts the signal strength based on the cable length. Reduces the power consumption for cables shorter than 10m.


  • Jumbo frames Frame sizes up to 10 KB supported on 10/100 and Gigabit interfaces
  • MAC table Up to 8000 MAC addresses
  • Discovery
    • Bonjour The switch advertises itself using the Bonjour protocol.
    • Link Layer Discovery Protocol (LLDP) (802.1ab) with LLDP-MED extensions: LLDP allows the switch to advertise its identification, configuration, and capabilities to neighboring devices that store the data in a MIB. LLDP-MED is an enhancement to LLDP that adds the extensions needed for IP phones.
    • Cisco Discovery Protocol* The switch advertises itself using the Cisco Discovery Protocol.


  • Reset button

Cabling Type

  • Unshielded twisted pair (UTP) Category 5 or better for 10BASE-T/100BASE-TX; UTP Category 5 Ethernet or better for 1000BASE-T


  • System, Link/Act, Speed


  • 16 MB

CPU memory

  • 128 MB

Packet Buffer

  • 4MB

Dimensions (W x H x D)

  • 17.3 x 1.45 x 13.78 in. (440.4 x 44.45 x 350 mm)

Unit weight

  • 8.62 lb (3.91 kg)


  • Power saving mode: Energy Detect, Short reach
    Maximum Consumption 110V = 64.1W / 220V = 63.7W
  • Heat Dissapation (BTU/hr) 218.7
  • Power Supply: 100–240V 47–63 Hz, internal, universal


  • UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A


  • Operating temperature 32° to 104°F (0° to 40°C)
  • Storage temperature –4° to 158°F (–20° to 70°C)
  • Operating humidity 10% to 90%, relative, noncondensing
  • Storage humidity 10% to 90%, relative, noncondensing

Minimum Requirements

  • Web browser: Mozilla Firefox version 2.5 or later; Microsoft Internet Explorer version 6 or later
  • Category 5 Ethernet network cable
  • TCP/IP, network


Rack-Mount 23 in. (58.4 cm) EIA:
Jumbo Frame Support:
9 KB
Routing Protocol:
Static IPv4 routing
Minimum Storage Temperature:
-4 F
13.78 inches
100,262 hours at 45C
Cables Included:
1x Serial Cable
4K Active VLANs
1.73 inches
Maximum Operating Temperature:
104 F
MAC Address Table Size:
16k entries
Chinese (simplified), English, German, French, Italian, Spanish, Japanese
17.3 inches
Enclosure Type:
Desktop, rack-mountable - 1U
Maxiumum Storage Temperature:
158 F
48-port 10/100/1000 + 4 combo Gigabit SFP
Device Type:
Switch - 52 ports - L3 - managed
Humidity Operating Range:
10-90% (non-condensing)
11.68 lbs
Minimum Operating Temperature:
32 F
48 x 10BASE-T/100BASE-TX/1000BASE-T - RJ-45 - PoE; 2 x 10BASE-T/100BASE-TX/1000BASE-T - RJ-45; 1 x console - 9 pin D-Sub (DB-9) - management; 2 x SFP (mini-GBIC)
Humidity Storage Range:
10-90% (non-condensing)
Flash Memory:
16 MB
Voltage Required:
AC 120/230 V ( 50/60 Hz )
Switching capacity: 104 Gbps | Forwarding performance (64-byte packet size): 77.38 Mpps
Power Device:
Internal power supply
Power Over Ethernet (PoE):
Status Indicators:
Link activity, port transmission speed, system
128 MB
Authentication Method:
Secure Shell (SSH), RADIUS, TACACS+
SKU SG300-52P-K9-AU
Barcode # 882658499197
Brand Cisco
Shipping Weight 6.8000kg
Manufacturer Warranty
Limited Lifetime Hardware Warranty

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