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by Arista
Product Line: Arista 7148SX Series
Product Type: Data Center Switch
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Product Description

The DCS-7148SX-F is a 48-port 10GbE switch with SFP+ interfaces, designed to deliver high performance with a throughput of 960Gbps and a processing capability of 720Mpps. It features a dual-core x86 CPU, 2 Gigabytes of system memory, and 2 Gigabytes of flash storage, ensuring efficient management and operation. The switch is equipped with hot-swappable PSUs and fans for redundancy, supports a typical power draw of 600W, and operates within a temperature range of 0 to 40C, making it suitable for various data center environments.

FAQs for the DCS-7148SX-F

  • What is the throughput capacity of the 48-port 10GbE switch?
    The throughput capacity of the switch is 960 Gbps.
  • How many power supplies does the SFP+ model include?
    The model includes 2 hot-swappable power supplies for 1+1 redundancy.
  • What type of fans are equipped in this switch for cooling?
    The switch is equipped with front-to-rear fans that are hot-swappable, supporting N+1 redundancy.
  • Can you detail the CPU and memory specifications of the switch?
    The switch is powered by a Dual-Core x86 CPU and has 2 Gigabytes of both system memory and flash storage memory.
  • Is the airflow direction reversible in this networking device?
    Yes, the device supports a reversible airflow option.
  • What are the management and connectivity options available on this device?
    The device features 2 10/100/1000 management ports, 1 RS-232 serial port (RJ-45), and 1 USB port.
  • Describe the power requirements and consumption of this 48-port switch.
    It has a typical power draw of 600W and comes with 2xAC power inputs and 2xC13-C14 cords.
  • What are the physical dimensions and weight of this switch?
    The switch measures 17.4” x 1.75” x 20.25” (44.0 x 4.4 x 51.5 cm) and weighs 29 lbs (13.2 kg).
  • How does this device perform in terms of packets per second and latency?
    The device supports up to 720 Mpps (Million packets per second) and has a latency of 1200 nsec.
  • What environmental conditions is the 48-port 10GbE switch designed to operate within?
    It operates in temperatures from 0 to 40°C, can be stored in temperatures from -40°C to 70°C, handles relative humidity from 5 to 95%, and operates up to an altitude of 10,000 ft.

Product Review

The Arista DCS-7148SX-F offers impressive performance with a throughput of 960Gbps and a packet processing capacity of 720Mpps, suitable for high-demand network environments. The dual hot-swappable power supplies and N+1 redundant fans enhance system reliability, ensuring uninterrupted operation. However, its latency of 1200 nsec may not meet the needs of applications requiring ultra-low latency, marking a potential limitation for specific use cases.


The Arista DCS-7148SX-F is a high-performance 48-port 10GbE switch designed to meet the demands of data centers and high-density networking environments. It offers a remarkable throughput of 960Gbps and can process up to 720 million packets per second, ensuring efficient handling of network traffic even under heavy loads. The switch's latency is optimized to 1200 nanoseconds, providing swift data transmission that is critical for applications requiring high-speed connectivity. Powered by a dual-core x86 CPU and equipped with 2 gigabytes of both system memory and flash storage memory, the Arista DCS-7148SX-F is built to offer reliable performance and support advanced networking features. It includes two 10/100/1000 management ports, one RS-232 serial port (RJ-45), and one USB port, offering versatile connectivity options for management and configuration. For enhanced reliability, the switch features two hot-swappable power supply units (PSUs) and five hot-swappable fans, configured for 1+1 redundancy and N+1 redundancy respectively. This design ensures uninterrupted operation and easy maintenance, minimizing downtime. The typical power draw of the device is 600W, making it an energy-efficient choice for enterprises looking to optimize their power usage.
  • Front-to-rear airflow ensures efficient cooling and supports reversible airflow options, catering to different rack configurations and cooling strategies.
  • The switch comes with two AC power inputs and includes two C13-C14 cords, facilitating easy integration into existing power infrastructure.
  • Its compact size of 17.4” x 1.75” x 20.25” (44.0 x 4.4 x 51.5 cm) and weight of 29 lbs (13.2 kg) allow for flexible deployment in space-constrained environments.
The operating temperature range of 0 to 40C and storage temperature range of -40C to 70C, combined with a relative humidity tolerance of 5 to 95%, ensure the switch's resilience in various environmental conditions. Furthermore, it is designed to operate reliably at altitudes up to 10,000 feet, enhancing its suitability for deployment in a wide range of geographical locations. In summary, the Arista DCS-7148SX-F is a versatile and efficient 10GbE switch that provides high-speed connectivity, robust performance, and reliability for data centers and enterprise networks. Its advanced features, combined with redundant power and cooling systems, make it an excellent choice for organizations looking to enhance their network infrastructure with a scalable, high-capacity switching solution.


Item NumberDCS-7148SX-F
TypeSwitch with 48 ports at 10GbE (SFP+)
Airflow DirectionFront to rear
Power Supply Units2, AC
Power Cables2, C13 to C14
Data Rate960 Gbps
Packet Processing Rate720 million pps
Network Latency1.2 microseconds
ProcessorDual-Core x86 architecture
Main Memory2 GB
Storage for Firmware and Logs2 GB Flash
Management Interfaces2 x Gigabit Ethernet
Console Port1 (RJ-45 interface)
USB Interface1 port for external storage and logging
Power Supply RedundancyYes, 2 PSUs (1+1 configuration)
Fan RedundancyYes, 5 fans (N+1 configuration)
Energy Consumption (Typical)600 Watts
Dimensions44.0 x 4.4 x 51.5 cm (WxHxD)
Mass13.2 kg
Operating Temperature Range0°C to 40°C
Storage Temperature Range-40°C to 70°C
Humidity Tolerance5% to 95%, non-condensing
Max Operating ElevationUp to 3,048 meters
Reversible AirflowAvailable

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