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by Cisco
Product Line: SG500 Series Stackable Managed Switches
Product Type: Switch
Original price $0.00 - Original price $465.00
Original price
$0.00 - $465.00
Current price $465.00
Title: Used

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Product Description

The SG500-28P-K9-NA is equipped with 24 GE RJ-45 ports and 4 GE total system ports, including 2 Combo GE + 2 1G/5G SFP ports, supporting a wide range of connectivity options. It delivers a forwarding rate of 41.67 Mpps and a switching capacity of 72 Gbps, backed by a MAC table capacity of 16K addresses and support for up to 4,096 VLANs. Additional features include 32 MB of flash memory, 256 MB of CPU memory, and an 8 Mb packet buffer, housed in a chassis measuring 440 x 44 x 257 mm and weighing 3.95 kg.

Key Feature for the SG500-28P-K9-NA

  • What is the total number of system ports available on this device?
    The device offers 24 GE RJ-45 ports and 4 GE combo ports, totaling 28 system ports.
  • How many RJ-45 and SFP combo ports does the product feature?
    It features 2 Combo GE (RJ-45 + SFP) ports and 2 additional 1G/5G SFP ports.
  • What is the forwarding rate of the network switch?
    The forwarding rate of the switch is 41.67 Mpps.
  • Can you detail the switch's MAC table capacity?
    The MAC table can support up to 16K addresses.
  • What is the maximum switching capacity of this device?
    The device boasts a switching capacity of 72 Gbps.
  • How many VLANs can be supported by the switch?
    Up to 4,096 VLANs can be supported.
  • What is the size of the packet buffer?
    The packet buffer size is 8 Mb.
  • What are the dimensions and weight of the switch?
    The switch measures 440 x 44 x 257 mm and weighs 3.95 kg.
  • What is the operating temperature range for this device?
    The operating temperature range is 0 °C to 40 °C.
  • What accessories come included with the hardware?
    Included are a power cord, mounting kit, quick start guide, serial cable, and a CD-ROM with user documentation.

Product Review

The Cisco SG500-28P-K9-NA switch offers a solid switching capacity of 72 Gbps and a forwarding rate of 41.67 Mpps, supporting efficient data flow and network performance. With a comprehensive feature set including 24 GE ports, 4 combo ports, support for up to 4,096 VLANs, and advanced security features, it is well-suited for small to medium-sized business applications. However, the limited flash memory of 32 MB might constrain advanced users or complex configurations, potentially impacting the switch's scalability and flexibility in dynamic networking environments.


The Cisco SG500-28P-K9-NA is a stackable managed switch designed for small to medium-sized businesses, providing a reliable foundation for business applications. It features 24 Gigabit Ethernet (GE) RJ-45 ports and 4 additional GE ports, enhancing network connectivity and performance. This switch supports a variety of advanced networking features, tailored to meet the diverse needs of modern business environments. With a forwarding rate of 41.67 million packets per second (Mpps) and a switching capacity of 72 gigabits per second (Gbps), the SG500-28P-K9-NA efficiently handles data traffic, ensuring smooth and responsive network operations. The device's MAC table can accommodate up to 16,000 addresses, facilitating efficient network resource management and security. Additionally, this switch supports up to 4,096 VLANs, allowing for extensive network segmentation and improved security. The SG500-28P-K9-NA is equipped with 2 combo GE ports and 2 1G/5G SFP (Small Form-Factor Pluggable) ports, providing flexible connectivity options for both copper and fiber connections. This versatility makes the switch suitable for a wide range of networking applications and deployment scenarios. Key Hardware Specifications: - Jumbo frames support of up to 9K bytes, enhancing data transfer rates for large data packets. - A reset button for easy device restarts and configuration resets. - Indicative LEDs for power savings, system status, link/activity, PoE (Power over Ethernet), and speed, offering at-a-glance monitoring of the switch's performance and status. The switch's internal hardware includes 32 MB of flash memory and 256 MB of CPU memory, ensuring smooth operation and sufficient storage for the device's firmware and configuration settings. An 8 Mb packet buffer helps in managing data flow, reducing latency, and improving overall network efficiency. Physical dimensions of the switch are 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 19-inch racks. The operational temperature range is between 0 °C and 40 °C, and the device can be stored in temperatures ranging from -20 °C to 70 °C. It operates reliably in relative humidity conditions from 10% to 90% (non-condensing), ensuring durability in various environmental conditions. Other notable features include: - An acoustic noise level of 41.2 dB, providing a relatively quiet operation suitable for office environments. - A mean time between failures (MTBF) of 253,175.1 hours, indicating a high level of reliability and reduced downtime. - The package includes a power cord, mounting kit, quick start guide, serial cable, and a CD-ROM with user documentation, facilitating easy setup and installation. Designed for use in the United States, the Cisco SG500-28P-K9-NA switch comes equipped with everything needed for immediate deployment in a business network, providing a scalable, secure, and energy-efficient solution for today’s networking demands.


Model NumberSG500-28P-K9-NA
Total Interfaces28 Gigabit Ethernet + 4 Gigabit
Ethernet Interfaces24 Gigabit Ethernet
Hybrid Interfaces (Ethernet + Fiber)2 Gigabit Ethernet Combo + 2 1G/5G SFP Combo
Data Processing Rate41.67 Million packets per second
Switch Performance72 Gigabits per second
MAC Address Capacity16,000 Entries
Supported VLANs4,096
Maximum Frame Size9,000 Bytes
Reset MechanismButton
Indicator LightsPower, System Status, Activity/Link, PoE Status, Connection Speed
Storage32 MB Flash
System Memory256 MB
Packet Memory8 Megabits
Dimensions440 mm x 44 mm x 257 mm
Mass3.95 Kilograms
Operational Heat Range0 to 40 Degrees Celsius
Storage Heat Range-20 to 70 Degrees Celsius
Humidity for Operation10% to 90% Non-Condensing
Humidity for Storage10% to 90% Non-Condensing
Sound Emission41.2 Decibels
Reliability253,175 Hours Mean Time Between Failures
Included AccessoriesPower Cable, Rack Mount Kit, Quick Start Guide, Serial Cable, CD with Documentation
Usage RegionUnited States

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