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by Cisco
Product Line: Cisco Small Business Series
Product Type: Switch
Original price $0.00 - Original price $627.00
Original price
$0.00 - $627.00
Current price $627.00
Title: Used

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Product Description

The SG500-52-K9 Cisco switch features 48 GE RJ-45 ports and 4 GE combo ports (2 Combo GE + 2 1G/5G SFP), supporting a diverse range of connections. It has a switching capacity of 120 Gbps and a forwarding rate of 77.38 Mpps, efficiently managing data traffic. Additionally, the switch is designed with a 16K MAC address table, supports up to 4,096 VLANs, and handles jumbo frames up to 9K bytes, enhancing network performance and scalability.

Key Feature for the SG50052K9

  • What is the total number of ports available on this switch?
    The switch has a total of 52 ports, comprising 48 Gigabit Ethernet (GE) RJ-45 ports and 4 additional GE ports.
  • Can you detail the combo port configuration for part number?
    Yes, it includes 2 Combo Gigabit Ethernet (GE) ports plus 2 1G/5G Small Form-Factor Pluggable (SFP) ports.
  • What is the forwarding rate of this device?
    The device has a forwarding rate of 77.38 million packets per second (Mpps).
  • How does the MAC address table size of the part number contribute to its performance?
    A MAC address table size of 16,000 addresses allows efficient handling of network traffic by reducing the need to forward packets to all ports when the destination is unknown.
  • What are the VLAN capabilities of this device?
    The device supports up to 4,096 VLANs, enabling extensive network segmentation and management.
  • How large are the jumbo frames that can be processed by the part number?
    It can process jumbo frames up to 9,000 bytes in size, facilitating efficient data handling for large transfers.
  • What storage conditions are recommended for this device?
    The device should be stored at a temperature range of -20 °C to 70 °C and a relative humidity of 10% to 90% (non-condensing).
  • What is the significance of the part number’s MTBF?
    An MTBF (Mean Time Between Failures) of 164,614 hours indicates a high reliability and expected operational lifespan of the device.
  • What items are included with the device?
    It comes with a power cord, mounting kit, quick start guide, and console cable.
  • Does the part number have any power savings features?
    Yes, it includes LEDs for power savings, indicating energy-efficient operation.

Product Review

The Cisco SG500-52-K9 offers a switching capacity of 120 Gbps and a forwarding rate of 77.38 Mpps, supporting high-speed data processing and efficient traffic management across its 48 Gigabit Ethernet ports and 4 additional combo ports. With support for up to 4,096 VLANs and a MAC table capacity of 16K addresses, it meets the needs of complex network environments, though its limited flash memory of 32 MB could constrain advanced configurations or future firmware upgrades. The device operates within a broad temperature range (0°C to 40°C) and offers a mean time between failures (MTBF) of 164,614 hours, indicating reliability, but its noise levels may be a consideration in quiet office settings.


The Cisco SG500-52-K9 is a stackable managed switch designed to support the demands of growing businesses by offering a high level of performance and security. This switch provides 48 Gigabit Ethernet (GE) ports and 4 additional GE ports, facilitating high-speed connectivity and efficient traffic management across the network. Key hardware specifications include a forwarding rate of 77.38 million packets per second (Mpps) and a switching capacity of 120 gigabits per second (Gbps), ensuring swift data transfer and handling of heavy traffic without bottlenecks. The device supports up to 16K MAC addresses, making it capable of accommodating a large number of networked devices without compromising on efficiency or speed. For network segmentation and management, the SG500-52-K9 supports up to 4,096 VLANs, allowing for extensive network partitioning and improved security. It also supports jumbo frames up to 9K bytes, which enhances data transfer rates for large data packets. The switch is equipped with two combo ports (RJ-45 + SFP) and two 1G/5G SFP ports, offering flexible connectivity options for uplinks and high-speed connections. The hardware design includes a reset button, and several LEDs for power savings, system status, link/activity, PoE status, and speed indication, providing at-a-glance information about the switch's operation and performance. The switch has 32 MB of flash memory and 256 MB of CPU memory, alongside a dual 8 Mb packet buffer, ensuring efficient processing and handling of data. Physically, the SG500-52-K9 measures 440 mm in width, 44 mm in height, and 257 mm in depth, with a weight of 3.95 kg, making it suitable for rack mounting in standard server racks. The operating temperature range is from 0 °C to 40 °C, with storage temperatures ranging from -20 °C to 70 °C. The device operates optimally within a relative humidity range of 10% to 90% (non-condensing), both in operation and storage, ensuring reliability in various environmental conditions. The acoustic noise level varies from 43.8 dB in cooler conditions (0°C to 30°C) to 52.1 dB at higher temperatures (50 °C), indicating a relatively quiet operation suitable for office environments. With a Mean Time Between Failures (MTBF) of 164,614 hours, the SG500-52-K9 promises reliability and longevity, minimizing downtime and maintenance costs. Included with the switch are a power cord, mounting kit, quick start guide, and console cable, providing everything needed for setup and integration into a network. - Total System Ports: 48 GE + 4 GE - Switching Capacity: 120 Gbps - Operating Temperature Range: 0 °C to 40 °C Overall, the Cisco SG500-52-K9 is engineered to meet the requirements of complex business networks, offering scalability, reliability, and high performance, making it a suitable choice for businesses looking to upgrade their network infrastructure.


Item NumberSG500-52-K9
Total Interfaces52 Gigabit Ethernet (48 GE + 4 GE)
Gigabit Ethernet Ports48 GE
Mixed Ports (Ethernet + Fiber)2 RJ-45/GE + 2 SFP for 1G/5G
Data Processing Rate77.38 Million packets per second
Switch Throughput120 Gigabits per second
MAC Address Capacity16,000 Entries
Virtual Networks4,096 VLANs
Maximum Frame Size9,000 Bytes
Reset MethodButton
Indicator LightsEnergy Efficient, System Status, Activity/Link, PoE Usage, Transmission Speed
Internal Storage32 MB Flash
Processor Memory256 MB
Buffer Memory16 Mb
Dimensions440 x 44 x 257 mm (Width x Height x Depth)
Mass3.95 kilograms
Operational Temp (Min)0 Degrees Celsius
Operational Temp (Max)40 Degrees Celsius
Temp for Storage-20 to 70 Degrees Celsius
Humidity for Operation10% to 90%, Non-Condensing
Humidity for Storage10% to 90%, Non-Condensing
Sound Emission43.8 dB up to 30°C, 52.1 dB at 50°C
Estimated Lifespan164,614 Hours
Included AccessoriesPower Cable, Rack Mount Kit, Startup Guide, Serial Cable

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