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by Cisco
Product Line: Cisco SG Series
Product Type: Switch
Original price $0.00 - Original price $2,109.00
Original price
$0.00 - $2,109.00
Current price $2,109.00
Title: Used

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Product Description

The SG550X-48-K9 Cisco switch features 48 GE network ports and 4 10 GE uplink ports (2 10 GE Copper/SFP+ Combo + 2 SFP+), supporting a switching capacity of 176 Gbps and a forwarding rate of 130.94 Mpps. It is designed with a MAC table capable of holding 32K addresses and supports up to 4,094 VLANs, with a packet buffer of 3 MB and jumbo frames up to 9K bytes. This model integrates 256 MB of flash memory and 256 MB of CPU memory, enclosed in a chassis measuring 440 x 44 x 257 mm and weighing 3.73 kg, and operates within a temperature range of 0 °C to 50 °C.

Key Feature for the SG550X-48-K9

  • What is the total number of system ports available on this switch?
    The switch features 48 Gigabit Ethernet (GE) ports and 4 10-Gigabit Ethernet (10 GE) ports, totaling 52 ports.
  • How many network ports does the switch have?
    There are 48 GE network ports.
  • Can you elaborate on the uplink port configuration?
    The switch offers 2 10 GE Copper/SFP+ Combo ports and 2 additional SFP+ ports for uplinks.
  • What is the forwarding rate of the switch?
    The forwarding rate of the switch is 130.94 Mpps (Million packets per second).
  • Describe the switch’s switching capacity.
    It has a switching capacity of 176 Gbps.
  • How large is the MAC address table?
    The MAC address table can hold up to 32,000 addresses.
  • What is the maximum number of VLANs supported?
    The switch supports up to 4,094 VLANs.
  • What are the specifications for Jumbo Frames?
    Jumbo Frames up to 9K bytes are supported.
  • What type of memory is used for CPU and Flash Memory?
    Both CPU and Flash Memory are equipped with 256 MB.
  • What are the physical dimensions and weight of the switch?
    The switch measures 440 mm in width, 44 mm in height, and 257 mm in depth, with a weight of 3.73 kg.

Product Review

The Cisco SG550X-48-K9 offers a significant switching capacity of 176 Gbps and a forwarding rate of 130.94 Mpps, supporting high-performance demands in complex network environments. Its comprehensive feature set, including 48 GE network ports, 4 10GE uplinks, and support for up to 4,094 VLANs, makes it versatile for varied networking tasks. However, the system is limited by its 256 MB flash and CPU memory, which may constrain advanced functions and future scalability.


The Cisco SG550X-48-K9 is a high-performance switch designed for businesses seeking to upgrade their network infrastructure. This switch offers a comprehensive set of features suitable for complex network environments. At the core of its design, the switch includes a total of 52 ports, comprising 48 Gigabit Ethernet (GE) network ports for connecting a wide array of devices and 4 10-Gigabit Ethernet (10 GE) uplink ports to facilitate high-speed connectivity and data transfer across the network. These uplink ports are divided into two 10 GE Copper/SFP+ Combo ports and two additional SFP+ ports, providing flexibility in connecting to various network modules. The SG550X-48-K9 boasts a forwarding rate of 130.94 million packets per second (Mpps) and a switching capacity of 176 gigabits per second (Gbps), ensuring efficient handling of traffic even in demanding scenarios. It supports a MAC address table of 32K addresses, enabling the device to manage large numbers of connected devices without performance degradation. In terms of network segmentation and security, the switch supports up to 4,094 VLANs, offering extensive options for network administrators to organize network traffic and enhance security. It also supports jumbo frames up to 9K bytes, allowing for the efficient transfer of large data packets across the network. The hardware specifics include: - A reset button for easy troubleshooting and configuration resets. - Multiple LEDs indicating system status, master operations, stack ID, fan status, RPS, and link/speed for each port, providing at-a-glance monitoring of the switch’s performance and connectivity. - Flash memory of 256 MB and CPU memory of 256 MB, ensuring smooth operation and sufficient storage for the switch's firmware and configuration files. - A packet buffer size of 3 MB, aiding in the efficient handling of data packets during high traffic periods. The device dimensions are 440 x 44 x 257 mm, with a weight of 3.73 kg, making it suitable for rack-mounted installations in data centers and network closets. It operates within a temperature range of 0 °C to 50 °C and can be stored in temperatures ranging from -20 °C to 70 °C. Humidity tolerance is set at 10% to 90% for both operating and storage conditions, ensuring reliability in various environmental conditions. The acoustic noise level varies from 35.7 dB in cooler operating conditions to 40.8 dB at higher temperatures, maintaining a relatively quiet operation. Key hardware highlights include: -
  • Total System Ports: 48 GE + 4 10 GE
  • Switching Capacity: 176 Gbps
  • MAC Table: 32K Addresses
The Mean Time Between Failures (MTBF) is rated at 504,328 hours, indicating a reliable hardware lifespan. Each unit comes with essential accessories, including a power cord, mounting kit, console cable, and a quick start guide to facilitate immediate setup and deployment. It operates on a voltage rating of 100 V to 240 V, accommodating a wide range of power supply standards and making it versatile for global deployment. The Cisco SG550X-48-K9 combines high-capacity network connectivity with advanced features, making it an excellent choice for businesses looking to enhance their network infrastructure.


Item Number and ProducerCisco SG550X-48-K9
Total Interface Count52 Ports (48 Gigabit Ethernet + 4 Ten Gigabit Ethernet)
Gigabit Ethernet Interfaces48 Ports
High-Speed Uplink Interfaces2 Ten Gigabit Ethernet Copper/SFP+ Combo + 2 SFP+
Data Processing Rate130.94 Million packets per second
Data Transfer Capacity176 Gigabits per second
Address Database Size32,000 Entries
Supported VLANs4,094
Maximum Frame Size9,000 Bytes
Factory Reset ButtonReset
Indicator LightsSystem, Master, Stack ID, Fan, RPS, Link/Speed for each Port
Non-Volatile Storage256 Megabytes
Processor Memory256 Megabytes
Buffer Size3 Megabytes
Dimensions440 mm x 44 mm x 257 mm
Mass3.73 Kilograms
Operational Heat Range0 to 50 Degrees Celsius
Storage Heat Range-20 to 70 Degrees Celsius
Humidity During Operation10% to 90% (Non-Condensing)
Humidity During Storage10% to 90% (Non-Condensing)
Sound Emission35.7 dB at 0°C to 25°C, 40.8 dB at 50°C
Estimated Lifespan504,328 Hours
Included AccessoriesPower Cord, Mounting Equipment, Console Cable, Quick Start Manual
Power Requirement100 to 240 Volts

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