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by Arista
Product Line: Arista 7100 Series
Product Type: Switch
Original price $0.00 - Original price $575.00
Original price
$0.00 - $575.00
Current price $575.00
Title: Used

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Product Description

The DCS-7124S-R is a 24-port L2/3/4 switch, equipped with 5 rear-to-front airflow fans and 2 650W AC power supplies, supporting optional SFPs. It delivers a throughput of 480 Gbps and a packet processing rate of 360 Mpps, with a latency of 600 nsec. Key features include x86 Dual-Core CPU, 1GB Flash Memory, 1GB Main Memory, and support for hot-swappable PSUs and fans, designed for high-density networking environments.

Key Feature for the DCS-7124S-R

  • What is the throughput capability of the 24-port L2/3/4 switch?
    The switch supports a throughput of 480 Gbps.
  • How many airflow fans are included with the product?
    The product includes 5 rear-to-front airflow fans.
  • What power supply options are available for the switch?
    The switch comes with 2 650W AC power supplies, with SFPs being optional.
  • Can you detail the switch's packet processing rate?
    It processes packets at a rate of 360 million packets per second (Mpps).
  • What is the latency of this switch?
    The latency of the switch is 600 nanoseconds.
  • What type of CPU does the switch use?
    The switch uses an X86 Dual-Core CPU.
  • How much flash memory and main memory does the switch have?
    The switch is equipped with 1GB of flash memory and 1GB of main memory.
  • What are the management and connectivity options available on the switch?
    The switch has 2 Ethernet management ports, 1 serial port, and 1 USB port.
  • What are the physical dimensions and weight of the switch?
    The switch measures 1.74 x 17.4 x 20.25 inches (HxWxD) and weighs between 26 lbs (7124S model) and 29 lbs (7148S model).
  • Does the switch support hot-swappable PSUs and fans?
    Yes, the switch supports hot-swappable power supply units (PSUs) and fans.

Product Review

The Arista DCS-7124S-R offers an impressive throughput of 480 Gbps and a processing capacity of 360 Mpps, catering well to high-performance networking demands. However, its latency at 600 ns might not meet the requirements for ultra-low latency applications. The switch benefits from redundancy features such as 1+1 PSU and hot-swappable PSUs and fans, enhancing reliability and uptime, but the 1GB of flash and main memory may prove insufficient for complex routing tables and extensive ACLs in larger network environments.


The Arista DCS-7124S-R is a high-performance 24-port Layer 2/3/4 switch designed for data center networks. It integrates advanced networking hardware to facilitate efficient data handling and reliability for critical applications. The switch offers a compelling set of features geared towards ensuring high-speed connectivity, durability, and operational flexibility. At the core of the DCS-7124S-R’s performance metrics is its impressive throughput capacity of 480 Gbps and a packet processing rate of 360 million packets per second (Mpps), with a low latency of 600 nanoseconds. This combination ensures swift data transmission, making it suitable for environments demanding high bandwidth and minimal delay. Underpinning its processing capabilities, the switch is powered by an X86 Dual-Core CPU, complemented by 1GB of flash memory and 1GB of main memory. This hardware setup provides a solid foundation for running complex network operations and handling extensive data traffic efficiently. Connectivity on the DCS-7124S-R is versatile, thanks to its 24 SFP/SFP+ ports that support optional Small Form-factor Pluggable transceivers. Additionally, it includes two Ethernet management ports, a serial port, and a USB port, offering a variety of interfaces for network management and device configuration. The switch is designed with a focus on reliability and operational continuity. It features 1+1 power supply unit (PSU) redundancy and supports hot-swappable PSUs and fans, ensuring uninterrupted service and ease of maintenance. The system is equipped with five rear-to-front airflow fans, promoting effective cooling and stable operation under varying loads.
  • Throughput: 480 Gbps
  • Latency: 600 nsec
  • Hot Swappable Components: PSUs and Fans
Physically, the DCS-7124S-R has dimensions of 1.74 x 17.4 x 20.25 inches (44 x 440 x 515mm) and weighs approximately 26 lbs (11.8kg), making it a compact yet sturdy device suitable for rack-mount installation in data centers. Its design allows for reversible airflow, providing flexibility in different data center layouts and ensuring compatibility with various cooling strategies. Operational resilience is a key aspect of the DCS-7124S-R, capable of functioning within a broad range of temperatures from 0 to 40°C and tolerating storage temperatures from -40 to 70°C. The switch can operate in environments with relative humidity levels ranging from 5 to 95% and at altitudes up to 10,000 feet, accommodating a wide array of data center locations and conditions. In summary, the Arista DCS-7124S-R switch is a comprehensive solution for data centers requiring high-speed data transmission, reliability, and operational flexibility. Its advanced processing capabilities, coupled with a robust set of features for connectivity, redundancy, and environmental resilience, make it a valuable asset for managing complex network infrastructures.


Item Number Arista DCS-7124S-R
Manufacturer Arista
Type 24-port Layer 2/3/4 Switch
Cooling System 5 Fans, Airflow Direction: Rear to Front
Power Supplies 2 x 650W AC, Support for Optional SFPs
Data Rate 480 Gigabits per Second
Processing Capability 360 Million Packets per Second
Network Delay 600 Nanoseconds
Processor Dual-Core X86
Storage for Firmware 1GB Flash
System Memory 1GB RAM
Management Ethernet Ports 2 Ports
Console Ports 1 Serial Port
USB Interface 1 Port
Dimensions 44mm x 440mm x 515mm (H x W x D)
Unit Weight DCS-7124S: 11.8kg, DCS-7148S: 13.2kg
Port Type SFP/SFP+ Compatibility
Power Redundancy Supported (1+1 Configuration)
Modular Power Supplies Yes, Easily Replaced
Replaceable Fan Units Yes, Without System Interruption
Operational Heat Range 0°C to 40°C
Non-Operating Temperature Range -40°C to 70°C
Humidity Tolerance 5% to 95%, Non-Condensing
Maximum Operational Altitude Up to 3,048 Meters (10,000 Feet)
Airflow Configuration Flexibility Supports Reversible Airflow

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