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by Juniper
Product Line: Juniper Networks
Product Type: Switch
Original price $3,138.00 - Original price $3,680.00
Original price
$3,138.00 - $3,680.00
Current price $3,680.00
Title: Surplus

Orders typically ship within 1-3 Business days, if you need an item to ship sooner please contact us.

Product Description

The QFX5100-48S-3AFO is equipped with 48 SFP+/SFP ports and 6 QSFP+ ports, supporting up to 1.44 Tbps switching capacity and 1.08 Bpps throughput for high-performance networking. It features dual redundant AC power supplies, redundant (N+1) hot-pluggable fan modules, and a design that allows for both front-to-back and back-to-front cooling, ensuring optimal operation in various environments. Additional technical specifics include dual SFP/RJ-45 management ports, 1x RJ-45 Serial Console, 1x RJ-45 Gigabit Management, 1x Gigabit SFP Management, and 1x USB for versatile connectivity and management options, supporting a wide range of operational temperatures from 32° to 104° F and a relative humidity range of 5% to 90% (non-condensing) during operation.

Key Feature for the QFX510048S3AFO

  • What is the switching capacity of the QFX5100?
    The switching capacity of the QFX5100 is 1.44 Tbps/1.08 Bpps.
  • How many 1GbE and 10GbE ports does this switch support?
    It supports 48 1GbE SFP ports, including 24 copper 1GbE, and can support up to 72 10GbE SFP+ ports with a breakout cable.
  • What are the power specifications for the QFX5100?
    The QFX5100 operates with dual redundant (1+1) and hot-pluggable power supplies, supporting 110-240 V single phase AC power and -36 to -72 V DC power.
  • What types of management ports are available on this device?
    It has 1x RJ-45 Serial Console, 1x RJ-45 Gigabit Management, 1x Gigabit SFP Management, and 1x USB management ports.
  • Can the QFX5100 support 40GbE connections?
    Yes, it includes 6 QSFP+ ports for 40GbE connectivity.
  • What are the physical dimensions and weight of the QFX5100 switch?
    The dimensions are 1.72 x 17.36 x 20.48 inches (H x W x D), and it weighs 21.8 lb (9.9 kg).
  • Describe the cooling system of the QFX5100.
    It uses front-to-back airflow with redundant (N+1) and hot-pluggable fan modules for efficient cooling.
  • What is the maximum operating altitude for the QFX5100?
    The maximum operating altitude is up to 2,000 meters (610 m).
  • How does the QFX5100 handle large data frames?
    It supports jumbo frames up to 9,216 bytes, allowing for efficient large data packet transmission.
  • What is the power consumption of the QFX5100?
    The power consumption is approximately 150W.

Product Review

The Juniper QFX5100-48S-3AFO switch offers a high switching capacity of 1.44 Tbps/1.08 Bpps and versatile connectivity options with 48 SFP+/SFP ports and 6 QSFP+ ports, catering well to dense networking environments. However, its power consumption at 150W might be a concern for energy-conscious deployments. Additionally, the support for dual redundant power supplies and hot-pluggable fan modules enhances system reliability, yet the limited operating temperature range could restrict deployment in harsher environments.


The Juniper QFX5100-48S-3AFO is a high-performance switch designed for data centers, offering advanced features and flexibility. It comes with 48 SFP+/SFP ports and 6 QSFP+ ports, supporting a wide range of networking requirements. The switch also includes dual SFP/RJ-45 management ports for versatile connectivity options. Key to its design are redundant fans and AC power supplies, ensuring continuous operation and system reliability. The airflow is front-to-back, optimizing cooling for rack-mounted configurations. Management connectivity is comprehensive, with a RJ-45 Serial Console, a RJ-45 Gigabit Management, a Gigabit SFP Management port, and a USB port for local storage and configurations. The QFX5100-48S-3AFO boasts two expansion module slots, increasing its versatility and capacity for future upgrades. Its switching capacity reaches 1.44 Tbps/1.08 Bpps, demonstrating its capability to handle high volumes of data traffic efficiently. Despite its power, the switch maintains a low power consumption at approximately 150W, reflecting Juniper's commitment to energy efficiency. Weighing 21.8 lb (9.9 kg) and measuring 1.72 x 17.36 x 20.48 inches, the device is designed to fit in standard 19-inch server racks, making it suitable for various installation environments. The switch supports both AC and DC power inputs, ranging from 110-240 V single phase AC to -36 to -72 V DC, providing flexibility for different power infrastructures. The device's cooling system is enhanced with redundant (N+1) and hot-pluggable fan modules, ensuring optimal performance under varying conditions. It operates within a temperature range of 32° to 104° F and can be stored in temperatures from -40° to 158° F. The operating altitude reaches up to 2,000 meters, and it can function in 5% to 90% non-condensing humidity, showing its robustness across different environmental conditions. Connectivity options are extensive, with 48 1GbE SFP ports, which include 24 copper 1GbE connections. The 10GbE SFP+ ports can be expanded to 72 with a breakout cable, and the six 40GbE QSFP+ ports provide high-speed networking capabilities. This makes the Juniper QFX5100-48S-3AFO adaptable for both current and future networking demands. The device supports jumbo frames up to 9,216 bytes, beneficial for optimizing network performance by allowing larger data packets. This feature is particularly useful in environments with high data throughput requirements, reducing the number of packets and overhead. In summary, the Juniper QFX5100-48S-3AFO is a comprehensive solution for data center networking, offering: - 48 SFP+/SFP ports and 6 QSFP+ ports for extensive connectivity. - Dual redundant power supplies and fans with front-to-back airflow for reliability and efficient cooling. - Low power consumption and support for a wide range of environmental conditions, making it a sustainable and adaptable choice for various data center environments. With its advanced features and flexible design, the Juniper QFX5100-48S-3AFO stands out as a powerful and efficient switch for modern data centers.


Part Number Juniper QFX5100-48S-3AFO
Manufacturer Juniper Networks
Ports 48x SFP+/SFP, 6x QSFP+, 2x Combo Management (SFP/RJ-45)
Management Connections 1x RJ-45 Serial Console, 1x RJ-45 Gigabit Ethernet Management, 1x SFP Gigabit Ethernet Management, 1x USB Port
Expansion Options 2x Module Slots for Expansion
Switching Capacity 1.44 Terabits per second / 1.08 Billion packets per second
Power Usage 150 Watts
Mass 21.8 pounds (9.9 kilograms)
Dimensions (Height x Width x Depth) 1.72 x 17.36 x 20.48 inches (4.37 x 44.09 x 52.02 cm)
Airflow Direction Front-to-Back and Back-to-Front
Power Supplies Dual, Hot-Swappable, 1+1 Redundant AC Supplies
Power Input Range AC: 110-240V, Single Phase; DC: -36V to -72V
Fan Modules N+1 Redundant, Hot-Swappable
Compatibility with Racks Standard 19-inch Server Rack
1GbE SFP Support 48 Ports (Includes 24x 1GbE Copper)
10GbE SFP+ Capacity 48 Ports, Expandable to 72 with Breakout Cable
40GbE QSFP+ Ports 6 Ports
Operational Temperature Range 32° to 104° F (0° to 40° C)
Temperature Range for Storage -40° to 158° F (-40° to 70° C)
Maximum Operating Altitude Up to 2,000 feet (610 meters)
Humidity Range While Operating 5% to 90%, Non-condensing
Humidity Range When Stored 0% to 95%, Non-condensing
Maximum Frame Size 9,216 Bytes (Jumbo Frames)

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