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by Cisco
Product Line: Cisco 350 Series
Product Type: Managed Switch
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Product Description

The SF350-48P-K9 Cisco switch features 48 10/100 RJ-45 ports and 2 Combo Ports (Gigabit Copper/SFP) + 2 SFP, designed to accommodate a wide range of network devices with a switching capacity of 17.6 Gbps and 13.09 Mpps. It supports Power over Ethernet (PoE) on all 48 ports with a total power budget of 382 W, ensuring efficient energy distribution for connected PoE devices, alongside a power consumption of 50.8 W at 110 V and 52.1 W at 220 V. With an 800 MHz ARM CPU, 512 MB of CPU memory, and 256 MB of flash memory, this switch is engineered for reliable and scalable network performance.

FAQs for the SF350-48P-K9

  • What is the switching capacity of the network switch?
    The switching capacity is 13.09 Mpps (million packets per second) and 17.6 Gbps (gigabits per second).
  • How many ports support Power over Ethernet (PoE)?
    48 ports support PoE on this device.
  • What are the power consumption values for the switch?
    At 110 V, power consumption is 50.8 W, and at 220 V, it is 52.1 W.
  • What type of CPU does the switch use?
    The switch uses an 800 MHz ARM CPU.
  • How much flash memory is available on the device?
    There is 256 MB of flash memory available.
  • What is the size of the packet buffer?
    The packet buffer size is 3 MB.
  • What are the device's dimensions and weight?
    The device measures 17.3 x 1.73 x 13.78 inches and weighs 12.32 lbs.
  • What is the Mean Time Between Failures (MTBF) for the switch?
    The MTBF is 182,270 hours.
  • What temperature range can the switch operate in?
    The operating temperature range is from 0 °C to 50 °C.
  • How many RJ-45 ports are available and what types?
    There are 48 Fast Ethernet and 2 Gigabit Ethernet RJ-45 ports.

Product Review

The Cisco SF350-48P-K9 switch offers a comprehensive feature set with 48 PoE ports supporting up to 382W, catering to high-density deployments. Its switching capacity of 17.6 Gbps and a packet buffer of 3 MB ensure efficient handling of network traffic, though its Fast Ethernet ports might limit bandwidth for high throughput applications. Despite its capability, the switch operates within an acceptable noise level, but its reliance on older Fast Ethernet technology could be a drawback for environments requiring gigabit speeds.


The Cisco SF350-48P-K9 is a managed switch designed to support the demands of modern networks with 48 10/100 ports for Fast Ethernet connectivity, and an additional combination of 2 Gigabit Copper/SFP plus 2 SFP ports for uplink connectivity. This switch is engineered to cater to a wide array of networking requirements, providing a versatile solution for businesses seeking to optimize their network performance and reliability. At the core of its design, the SF350-48P-K9 offers a switching capacity of 17.6 Gbps, with the ability to process up to 13.09 million packets per second (Mpps), ensuring efficient data transfer across the network. This performance is supported by a dedicated power over Ethernet (PoE) budget of 382 watts, allowing all 48 ports to support PoE. This feature is particularly beneficial for deploying devices such as VoIP phones, wireless access points, and surveillance cameras without the need for additional power supplies. The switch's power consumption is optimized for efficiency, requiring 50.8 watts at 110 volts and 52.1 watts at 220 volts, with a heat dissipation of 1584.3 BTU/hour. This efficiency is further complemented by a robust thermal management system, maintaining operational integrity within a temperature range of 0 °C to 50 °C and a relative humidity range of 10% to 90% (noncondensing), ensuring reliable performance under various environmental conditions. From a hardware perspective, the SF350-48P-K9 is equipped with a powerful 800 MHz ARM CPU, paired with 512 MB of CPU memory and 256 MB of flash memory, providing ample processing power and storage for network management software and configuration files. The switch also includes a 3 MB packet buffer, optimizing the handling of burst traffic and enhancing overall network responsiveness. The physical dimensions of the switch are 17.3 x 1.73 x 13.78 inches, with a weight of 12.32 lbs., making it suitable for rack-mounted installations in data centers and network closets. User interaction is facilitated through a reset button, and system status is easily monitored via LEDs indicating system, Link/Act, PoE, and speed status. - RJ-45 Ports: 48 Fast Ethernet, 2 Gigabit Ethernet - Power Dedicated to PoE: 382 W - Flash Memory: 256 MB Acoustic noise levels are maintained at 42.5 dB in environments up to 25 °C and increase to 55 dB at the maximum operating temperature of 50 °C, balancing performance with noise control. The switch's reliability is underscored by an MTBF rating of 182,270 hours, indicating a commitment to long-term operational stability. In summary, the Cisco SF350-48P-K9 combines efficient power management, robust data processing capabilities, and versatile connectivity options, making it an ideal solution for businesses looking to enhance their network infrastructure with a switch that offers both high performance and reliability.


Part Number Cisco SF350-48P-K9
Manufacturer Cisco
Fast Ethernet Ports Count 48
Combo Interface Types 2 Combination Gigabit Ethernet/SFP + 2 SFP
Forwarding Rate 13.09 Million Packets per Second
Bandwidth Capacity 17.6 Gbps
Power Allocated for PoE 382 Watts
PoE Ports Total 48
Energy Use 50.8 Watts at 110V, 52.1 Watts at 220V
Thermal Output 1584.3 BTU/Hour
Ethernet Interfaces 48 Fast Ethernet, 2 Gigabit Ethernet
Controls Reset
Indicator Lights Power, Link/Activity, PoE, Speed
Storage Capacity 256 MB Flash
Processor Type 800 MHz ARM
Processor Memory 512 MB
Buffer Size 3 MB
Dimensions 17.3 x 1.73 x 13.78 inches
Physical Weight 12.32 pounds
Operational Temperature Range Low 0 °C
Operational Temperature Range High 50 °C
Humidity Range Operating & Storage Low 10% (Noncondensing)
Humidity Range Operating & Storage High 90% (Noncondensing)
Storage Temperature Range Low -20 °C
Storage Temperature Range High 70 °C
Noise Level 42.5 dB at 0 °C to 25 °C, 55 dB at 50 °C
Mean Time Between Failures (MTBF) 182,270 Hours

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