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by Cisco
Product Line: Cisco SG300-52-K9
Product Type: Switch
Original price $0.00 - Original price $227.00
Original price
$0.00 - $227.00
Current price $227.00
Title: Used

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Product Description

The SG300-52-K9 Cisco switch features 52 Gigabit Ethernet ports, including 50 RJ-45 ports and 2 combo ports (RJ-45 + SFP), supporting a forwarding rate of 77.38 Mpps and a switching capacity of 104 Gbps. Designed for efficiency, it offers a MAC table of 16K addresses, supports up to 4,096 VLANs, and handles jumbo frames of up to 9K bytes, with a dual packet buffer of 8 Mb each. The unit is engineered with 16 MB of flash memory, 128 MB of CPU memory, operates within a temperature range of 0 °C to 50 °C, and is built for reliability with an MTBF of 206,005.6 hours.

Key Feature for the SG300-52-K9

  • What is the total number of system ports on this device?
    The device features a total of 52 Gigabit Ethernet ports.
  • How many RJ-45 ports does the device have?
    It has 50 RJ-45 ports.
  • Can you detail the combo port configuration?
    This model includes 2 combo ports, combining RJ-45 and SFP.
  • What is the forwarding rate of this switch?
    The forwarding rate is 77.38 Mpps.
  • Discuss the switch's capacity for handling data.
    It boasts a switching capacity of 104 Gbps.
  • How extensive is the MAC table?
    The MAC table can accommodate 16K addresses.
  • What is the maximum size for VLANs supported by this device?
    The device supports up to 4,096 VLANs.
  • What is the largest jumbo frame size the switch supports?
    Jumbo frames up to 9K bytes are supported.
  • Describe the reset functionality.
    The device includes a reset button for quick and easy resets.
  • What type of memory and how much is included?
    It is equipped with 16 MB of flash memory and 128 MB of CPU memory.

Product Review

The Cisco SG300-52-K9 offers a comprehensive switching solution with its 52 Gigabit Ethernet ports, supporting high-speed connectivity and efficient traffic management with a forwarding rate of 77.38 Mpps and switching capacity of 104 Gbps. However, its limited flash memory of 16 MB and CPU memory of 128 MB may restrict advanced network features and services. Additionally, its robust VLAN support up to 4,096 addresses and extensive mean time between failures (MTBF) of over 206,000 hours demonstrate reliability for enterprise networking needs.


The Cisco SG300-52-K9 is a managed switch designed to support a high-performance network infrastructure. It features a total of 52 Gigabit Ethernet ports, including 50 RJ-45 ports and 2 combo ports that support both RJ-45 and SFP (Small Form-Factor Pluggable) connections. This flexibility allows for a wide range of connections, from copper to fiber, depending on the networking requirements. The switch has a forwarding rate of 77.38 Mpps (Million Packets per Second) and a switching capacity of 104 Gbps (Gigabits per Second), ensuring efficient handling of traffic even in demanding situations. It supports a MAC (Media Access Control) address table of 16K addresses, allowing for extensive device connectivity across the network. The SG300-52-K9 is capable of handling up to 4,096 VLANs (Virtual Local Area Networks), providing the versatility needed for segmenting networks into distinct, manageable sections. One of the notable features of this switch is its support for jumbo frames up to 9K bytes, which enhances data flow efficiency across the network by allowing larger packets to be transferred. The unit includes a reset button, and its front panel is equipped with multiple LEDs indicating system status, link/activity, speed, PoE (Power over Ethernet), and an LED power-saving option. The hardware specifications reveal a switch built for durability and performance. It has 16 MB of flash memory and 128 MB of CPU memory, with a dual 8 Mb packet buffer to ensure smooth data transmission. The device's dimensions are 440 x 44.45 x 257 mm, and it weighs 3.91 kg, making it suitable for standard rack mounting in data centers and network closets. Operating conditions are broad, with the switch functioning optimally between 0 °C and 50 °C. It can be stored in temperatures ranging from -20 °C to 70 °C. Relative humidity tolerance during operation ranges from 10% to 90% (non-condensing), ensuring reliability in a wide array of environmental conditions. The SG300-52-K9 has an acoustic noise level of 40.1 dB, minimizing noise in workspaces. Its Mean Time Between Failures (MTBF) is 206,005.6 hours, indicating a reliable long-term operation. Included with the switch are essential accessories for immediate setup and use. These include a power cord, mounting kit, serial cable, and a CD-ROM containing user documentation. A quick start guide is also provided to facilitate easy installation.
  • Forwarding rate: 77.38 Mpps
  • MAC Table: 16K addresses
  • MTBF: 206,005.6 hours
In summary, the Cisco SG300-52-K9 is engineered to meet the needs of medium to large-sized networks, offering advanced features and reliable performance. Its extensive port availability, high forwarding rate, and capacity for numerous VLANs make it a versatile choice for businesses looking to optimize their network infrastructure.


Model NumberSG300-52-K9
Total Network Interfaces52 Gigabit Ethernet Ports
Standard Ports50 RJ-45
Hybrid Ports2 (RJ-45 + SFP)
Data Transfer Rate77.38 Million Packets per Second
Bandwidth104 Gigabits per Second
MAC Address Database16,000 Entries
Supported VLANsUp to 4,096
Maximum Frame Size9,000 Bytes
Control ButtonReset
IndicatorsSystem, Link/Activity, Speed, PoE, Energy-efficient LED Option
Internal Storage16 MB Flash
System Memory128 MB
Buffer Memory16 Mb
Dimensions440 x 44.45 x 257 mm
Mass3.91 Kilograms
Operating Temperature Range0 to 50 °C
Storage Temperature Range-20 to 70 °C
Operational Humidity Range10% to 90%, Non-condensing
Humidity Range During Storage10% to 90%, Non-condensing
Sound Emission40.1 Decibels
Estimated Lifespan206,005.6 Hours
Included AccessoriesPower Cord, Mounting Hardware, Console Cable, CD with Documentation, Quick Start Guide

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