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by Juniper
Product Line: Juniper QFX Series
Product Type: Switch
Original price $9,345.00 - Original price $10,648.00
Original price
$9,345.00 - $10,648.00
Current price $10,648.00
Title: Surplus

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Product Description

The QFX5110-48S-AFI is a Juniper network switch featuring 48 SFP+ ports and 4 QSFP28 ports, designed for fixed 1U access/leaf applications with dimensions of 17.36 x 1.72 x 20.48 in. It offers a switching capacity of 1.76 Tbps/1.32 Bpps and supports port densities for 10/25/40/50/100/400GbE, with power consumption ranging from 150W on idle to 300W at maximum load. Key features include a 16MB buffer capacity, 550 ns latency, dual redundant (1+1) hot-pluggable power supplies, and operates efficiently within a temperature range of 32° to 104° F, accommodating various data center environments.

Key Feature for the QFX5110-48S-AFI

  • What are the port densities available on the QFX5110 switch?
    The QFX5110 supports 48 x 10GbE and 4 x 40/100GbE port densities.
  • How does the form factor of this device contribute to its deployment?
    With a fixed 1U form factor, the device is designed for efficient use in space-constrained environments, facilitating its deployment as an access or leaf switch in data centers.
  • What is the maximum power consumption of the QFX5110, 48 SFP+ and 4 QSFP28 model?
    The maximum power consumption is 300W.
  • Can you explain the airflow direction in the QFX5110 switch?
    The switch utilizes a back-to-front airflow mechanism, ensuring efficient cooling for high-performance operations.
  • What are the buffer capacity and latency specifications of the QFX5110?
    The buffer capacity is 16MB, with a latency of 550 ns.
  • What power options are available for the QFX5110?
    It supports 110-240 V single phase AC power and -36 to -72 V DC power, along with dual redundant (1+1) and hot-pluggable power supplies.
  • How does the switching capacity of the QFX5110 enhance network performance?
    With a switching capacity of 1.76 Tbps/1.32 Bpps, the switch ensures high-speed data transmission, enhancing overall network performance.
  • What are the operating and storage temperature ranges for the QFX5110?
    The operating temperature range is 32° to 104° F (0° to 40° C), and the storage temperature range is -40° to 158° F (-40° to 70° C).
  • Discuss the significance of the QFX5110's port expansion capabilities with breakout cables.
    Using breakout cables, the 10GbE SFP+ port count can be expanded from 48 to 64, increasing flexibility and scalability for growing network demands.
  • What environmental conditions can the QFX5110 withstand during operation?
    It can operate in 5% to 90% relative humidity (non-condensing) and withstand an operating altitude of up to 2,000 meters (610 m).

Product Review

The Juniper QFX5110-48S-AFI offers a high switching capacity of 1.76 Tbps and a diverse port configuration, including 48 SFP+ and 4 QSFP28 ports, catering efficiently to high-density networking environments. However, its power consumption peaks at 300W under maximum load, which might be a concern for energy-conscious deployments. Additionally, the switch's 550 ns latency and 16MB buffer capacity are tailored for applications requiring fast data processing and minimal delay, although the fixed form factor and specified operating conditions may limit its versatility in varied installation scenarios.


The Juniper QFX5110-48S-AFI is a fixed 1U switch designed for high-density, low-latency data center operations. It offers a versatile set of features suitable for access or leaf deployment in a compact form factor, measuring 17.36 inches in width, 1.72 inches in height, and 20.48 inches in depth. This device is engineered to support a wide array of networking demands with its 48 SFP+ ports and 4 QSFP28 ports, providing flexibility in connectivity options. The QFX5110-48S-AFI boasts a significant switching capacity of 1.76 Terabits per second (Tbps) and can handle 1.32 Billion packets per second (Bpps), ensuring efficient data processing and transfer rates. This high performance is complemented by a comprehensive range of supported port densities for 10/25/40/50/100/400 Gigabit Ethernet (GbE) connections, including 48 ports for 10GbE and 4 ports that can be configured for either 40 or 100GbE, enhancing the switch's adaptability to various network architectures. Power efficiency is a key aspect of the QFX5110-48S-AFI, with a maximum power consumption of 300 watts under full load. It operates typically at 195 watts and maintains a low idle power consumption of 150 watts, demonstrating its ability to balance performance with energy efficiency. The switch also features a buffer capacity of 16 Megabytes (MB) and maintains a low latency of 550 nanoseconds, ensuring rapid data transmission. Key hardware specifications include: - 48 SFP+ and 4 QSFP28 ports for versatile connectivity. - Dual redundant (1+1) and hot-pluggable power supplies for uninterrupted operations. - Back-to-front airflow design, supporting efficient cooling under various conditions. Additional technical details highlight its robustness in diverse environments, with an operating temperature range from 32° to 104° Fahrenheit (0° to 40° Celsius) and storage temperatures from -40° to 158° Fahrenheit (-40° to 70° Celsius). The QFX5110-48S-AFI's resilience is further evidenced by its ability to function up to 2,000 meters in altitude and in relative humidity conditions from 5% to 90% (non-condensing) during operation, and 0% to 95% (non-condensing) when non-operating. For connectivity, the switch supports a multitude of configurations, including 48 1GbE SFP ports (24 of which are dedicated copper 1GbE), 48/64 10GbE SFP+ ports (with the use of breakout cables), and 4 each for 40GbE QSFP+ and 100GbE QSFP28 ports. This range of supported speeds and media types ensures that the QFX5110-48S-AFI can integrate smoothly into various network setups, from traditional 1GbE to modern 100GbE infrastructures. Power options are comprehensive, with support for 110-240 V single-phase AC power and -36 to -72 V DC power. The inclusion of dual redundant and hot-pluggable power supplies ensures that the switch continues to operate even in the event of a power supply failure, minimizing downtime. In summary, the Juniper QFX5110-48S-AFI is engineered to meet the demands of modern data centers, offering high-density, low-latency switching capabilities within a compact and energy-efficient form factor. Its wide range of supported port densities and environmental tolerances make it a versatile choice for various network deployment scenarios.


Item Number Juniper QFX5110-48S-AFI
Manufacturer Juniper
Type QFX5110, 48 SFP+ and 4 QSFP28 ports
Airflow Direction Back-to-front AC
Size Fixed 1U, intended for access/leaf use
Dimensions 44.09 cm x 4.37 cm x 52.02 cm (17.36 in x 1.72 in x 20.48 in)
Throughput 1.76 Terabits per second / 1.32 Billion packets per second
Port Configuration 48 x 10GbE, 4 x 40/100GbE
Energy Usage Max: 300W, Typical: 195W, Idle: 150W
Memory Buffer 16 Megabytes
Network Delay 550 nanoseconds
1GbE Ports 48 (24 via copper)
10GbE Ports 48/64 (using breakout cables)
40GbE Ports 4
100GbE Ports 4
Cooling Method Back-to-front airflow
AC Power Specs 110-240 V, single phase
DC Power Range -36 to -72 V
Power Supply Configuration Dual, redundant (1+1), hot-swappable
Operational Heat Range 0° to 40° C (32° to 104° F)
Non-operational Heat Range -40° to 70° C (-40° to 158° F)
Max Operational Altitude Up to 610 meters (2,000 feet)
Operational Humidity 5% to 90% (non-condensing)
Non-operational Humidity 0% to 95% (non-condensing)

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