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by Juniper
Product Line: Juniper QFX5200 Series
Product Type: Switch
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Product Description

The QFX5200-48Y-AFI offers 48 SFP+/SFP28 ports and 6 QSFP+/QSFP28 ports, supporting up to 48 10GbE or 25GbE, and 6 40GbE or 100GbE connections, housed within a 1 U form factor. It delivers a system throughput of 3.6 Tbps (bi-directional) and a forwarding capacity of 2.1 Bpps, equipped with redundant (1+1) 650 W AC/DC power supplies and (N+1) fan modules for reliable back-to-front cooling. The device operates efficiently with a maximum power draw of 430 W, supports a temperature range from 32° to 104° F, and can function up to an altitude of 5000 ft.

FAQs for the QFX5200-48Y-AFI

  • What are the port configurations of this networking hardware?
    This device features 48 SFP+/SFP28 ports and 6 QSFP+/QSFP28 ports.
  • How is airflow managed in the system?
    It employs back-to-front airflow, supported by redundant (N+1) hot-pluggable fan modules.
  • Can you detail the power supply specifications?
    The unit includes redundant (1+1) hot-pluggable 650 W AC/DC power supplies.
  • What is the system's throughput capacity?
    System throughput reaches 3.6 Tbps (bi-directional).
  • What are the device's physical dimensions?
    Dimensions are 17.36 x 1.70 x 20.28 in. (44.09 x 4.31 x 51.5 cm), fitting in a 1U rack space.
  • What is the maximum power consumption of this device?
    Maximum power draw is 430 W for both AC and DC, equivalent to 1467 BTU/hr.
  • How does the device's forwarding capacity stand?
    It has a forwarding capacity of 2.1 Bpps.
  • What are the operating and storage temperature ranges?
    Operating temperature ranges from 32° to 104° F (0° to 40° C), with storage temperature ranges from -40° to 158° F (-40° to 70° C).
  • Detail the device's weight and its implications for installation.
    The device weighs 21.2 lb (9.6 kg), requiring consideration for rack mounting and stability.
  • What is the total packet buffer size?
    This networking hardware has a total packet buffer of 22 MB.

Product Review

The Juniper QFX5200-48Y-AFI offers high performance with a system throughput of 3.6 Tbps and a forwarding capacity of 2.1 Bpps, supporting up to 48 10GbE or 25GbE ports and 6 40GbE or 100GbE ports, making it suitable for dense, high-speed network environments. However, its operating temperature range is limited to 0° to 40° C, which may restrict deployment in environments with more extreme temperatures. Additionally, its dual AC power supplies and redundant fan modules ensure reliability and uptime but contribute to its maximum power draw of 430 W, necessitating efficient power management in deployment.


The Juniper QFX5200-48Y-AFI is a high-performance, 1 U data center switch designed for top-of-rack and end-of-row installations. It offers exceptional flexibility, scalability, and reliability for data center environments. This switch is engineered to cater to the demands of intensive workloads, providing high-speed connectivity and efficient traffic management to support a variety of applications. At its core, the QFX5200-48Y-AFI boasts 48 SFP+/SFP28 ports, allowing for a mix of 10GbE and 25GbE connections, maximizing port density and throughput within a single rack unit. This is complemented by 6 QSFP+/QSFP28 ports that can be configured for either 40GbE or 100GbE, providing versatile uplink options and the capacity to handle immense data flows. Key hardware specifications include: - System throughput of 3.6 Tbps bi-directional, ensuring rapid data transfer across the network. - Forwarding capacity of 2.1 Bpps, facilitating efficient packet processing and delivery. - Redundant (1+1) hot-pluggable 650 W AC/DC power supplies and redundant (N+1) hot-pluggable fan modules, offering high availability and reliability. The switch’s design focuses on operational efficiency and reduced power consumption. With a maximum power draw of 430 W and a typical power draw of 382 W, it balances performance with energy use. This efficiency is further highlighted by its compact dimensions (17.36 x 1.70 x 20.28 in) and a weight of 21.2 lb, making it an ideal solution for space-constrained environments. Additional features ensure the switch operates reliably under various conditions:
  • Back-to-front cooling, supporting effective thermal management.
  • A total packet buffer of 22 MB, accommodating bursts in data traffic.
  • Designed to operate within a temperature range of 32° to 104° F and at altitudes up to 5000 ft, ensuring consistent performance across diverse environments.
The operating and storage humidity ranges further underscore its durability, capable of functioning in 5% to 93% non-condensing environments. This resilience makes the Juniper QFX5200-48Y-AFI an excellent choice for data centers located in geographically diverse regions. In summary, the Juniper QFX5200-48Y-AFI is a versatile, high-capacity switch that addresses the needs of modern data centers. Its combination of port density, throughput capabilities, and energy-efficient design, paired with its reliability and durability features, positions it as a leading solution for organizations looking to optimize their network infrastructure.


Item Number Juniper QFX5200-48Y-AFI
Manufacturer Juniper
Ports 48 SFP+/SFP28
Cooling Dual redundant, back-to-front airflow fans
Power Supplies Two AC, redundant, back-to-front airflow
Throughput 3.6 Terabits per second, bidirectional
Forwarding Rate 2.1 Billion packets per second
High-Speed Ports 6 QSFP+/QSFP28
10GbE Ports Maximum 48
25GbE Ports Maximum 48
40GbE Ports Maximum 6
100GbE Ports Maximum 6
Dimensions 17.36 x 1.70 x 20.28 inches (44.09 x 4.31 x 51.5 cm)
Installation Space 1 Rack Unit
Weight 21.2 pounds (9.6 kg)
Power Configuration Dual (1+1), 650W, hot-pluggable, AC/DC
Fan Modules Redundant (N+1), hot-pluggable
Packet Buffer 22 Megabytes
Max Power Consumption 430 Watts (AC/DC), 1467 BTU/hour
Average Power Use 382 Watts (AC/DC), 1303 BTU/hour
Operational Temperature Range 32° to 104° F (0° to 40° C)
Storage Temperature Range -40° to 158° F (-40° to 70° C)
Maximum Operating Elevation Up to 5000 feet (1524 meters)
Operational Humidity 5% to 93%, non-condensing
Non-operational Humidity 5% to 93%, non-condensing

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