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by Arista
Product Line: Arista DCS-7140T-8S-F
Product Type: Switch
Original price $0.00 - Original price $2,467.00
Original price
$0.00 - $2,467.00
Current price $2,467.00
Title: Used

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Product Description

The DCS-7140T-8S-F Arista features 40-port 1/10GBASE-T (RJ-45) and 8 SFP+ ports, delivering high-density networking capabilities with 800 Gbps throughput and 600 Mpps packets per second, ensuring efficient data transfer across networks. It is equipped with a X86 Dual-Core CPU, 2GB flash memory, and 2GB main memory, supporting advanced networking features and applications. The unit includes 5 front-to-rear airflow fans, 2 760W AC power supplies with 1+1 PSU redundancy and hot-swappable PSUs, optimized for reliable operation in environments with a temperature range from 0 to 40C.

Key Feature for the DCS-7140T-8S-F

  • What are the key features of this networking hardware?
    The device includes 40 1/10GBASE-T (RJ-45) ports, 8 SFP+ ports, 5 airflow fans, 2 760W AC power supplies, and supports throughput of 800 Gbps and 600 Mpps packets per second. It has a latency of 2.9 usec, dual-core X86 CPU, 2GB flash memory, 2GB main memory, redundancy features, and operates efficiently within a wide range of temperatures and humidity levels.
  • How does the part ensure power efficiency and reliability?
    The part features 1+1 PSU redundancy and hot-swappable PSUs, ensuring continuous operation and minimizing downtime. With a typical power draw of 585 watts, it balances performance with energy efficiency.
  • Can I use Category 5e cabling with this device for 10GBASE-T connections?
    Yes, 10GBASE-T connections are supported over Category 5e or 6 cabling up to 55 meters, and over Category 6a or 7 cabling up to 100 meters.
  • What are the management and connectivity options available?
    The device is equipped with 2 Ethernet management ports, 1 serial port, and 1 USB port, facilitating versatile management and connectivity options.
  • What is the maximum operating temperature for this hardware?
    The maximum operating temperature is 40C, ensuring reliable performance in various environments.
  • How does the airflow design contribute to the device's performance?
    With 5 front-to-rear airflow fans, the device maintains optimal cooling, enhancing performance and longevity by effectively managing thermal conditions.
  • What is the latency of this networking hardware?
    The latency is 2.9 microseconds, enabling rapid data processing and transmission.
  • Does this device support hot-swappable power supplies?
    Yes, it supports hot-swappable PSUs, allowing for power supply replacement without interrupting operations.
  • What are the physical dimensions and weight of the hardware?
    The hardware measures 1.74 x 17.4 x 20.25 inches (HxWxD) and weighs 29 lbs (13.2kg), suitable for standard rack mounting.
  • How much memory is equipped in this device for processing and storage?
    It comes with 2GB of flash memory and 2GB of main memory, facilitating efficient data processing and storage.

Product Review

The Arista DCS-7140T-8S-F delivers a high-throughput of 800 Gbps and a packets per second rate of 600 Mpps, with a low latency of 2.9 usec, making it suitable for demanding network environments. However, its power draw of 585 watts might be a concern for energy-conscious deployments. Additionally, the switch offers flexibility with 40 1/10GBASE-T ports and 8 SFP+ ports, but its reliance on older Category 5e or 6 cabling for 10GBASE-T over distances up to 55m could limit its use in modern, high-speed networks.


The Arista DCS-7140T-8S-F is a high-performance networking switch designed for data center environments, offering a mix of 1/10GBASE-T and SFP+ ports to cater to a wide range of connectivity requirements. This device integrates advanced networking hardware to provide efficient, scalable, and high-speed data transfer capabilities. At the core of its design, the switch features 40 1/10GBASE-T (RJ-45) ports alongside 8 SFP+ ports. This combination allows for versatile connectivity options, supporting both copper and fiber optic cables. The switch is engineered to maximize performance, offering a throughput of 800 Gbps and a forwarding rate of 600 million packets per second (Mpps), ensuring rapid data transmission across the network. The device's low latency of 2.9 microseconds is beneficial for applications requiring real-time data processing and minimal delay. It is powered by an x86 dual-core CPU, equipped with 2GB of flash memory and 2GB of main memory, enabling efficient handling of networking tasks and smooth operation under heavy workloads. Key hardware features include: - Two Ethernet management ports, one serial port, and one USB port for flexible management and connectivity options. - Support for 10GBASE-T over Category 6a or 7 cabling up to 100 meters and over Category 5e or 6 cabling up to 55 meters, facilitating extended network layouts without compromising signal integrity. - 1+1 PSU redundancy and hot-swappable power supply units (PSUs), enhancing the system's reliability and minimizing downtime in case of a power supply failure. The switch is designed with five front-to-rear airflow fans, ensuring optimal cooling even under high operational loads. The dual 760W AC power supplies underscore the device's capability to maintain performance stability, with a typical power draw of 585 watts, reflecting its energy efficiency. Physically, the Arista DCS-7140T-8S-F boasts a compact form factor with dimensions of 1.74 x 17.4 x 20.25 inches (HxWxD) and a weight of 29 lbs (13.2kg), allowing for easy integration into data center racks. The device is built to operate within a temperature range of 0 to 40°C and can be stored in conditions ranging from -40 to 70°C. Its design also accounts for high relative humidity tolerance, from 5 to 95%, ensuring reliability in varied environmental conditions. In summary, the Arista DCS-7140T-8S-F provides a comprehensive solution for data center networking with its high-density port configuration, advanced performance features, and durable construction. Its design emphasizes speed, efficiency, and reliability, making it a suitable choice for organizations looking to optimize their network infrastructure for high-speed data transfer and connectivity.


Model NumberArista DCS-7140T-8S-F
Ports40 x 1/10GBASE-T (RJ-45), 8 x SFP+
Cooling System5 fans, front-to-rear airflow
Power Supplies2 x 760W AC
Data Capacity800 Gbps throughput
Packet Processing Rate600 million packets per second
Network Delay2.9 microseconds
ProcessorDual-Core X86
Storage2GB Flash
Management Interfaces2 Ethernet
Console Interface1 Serial Port
Peripheral Interface1 USB Port
PSU RedundancySupported (1+1)
PSU Hot SwapSupported
10GBASE-T CompatibilityUp to 100m with Cat 6a/7, up to 55m with Cat 5e/6
Power ConsumptionTypical 585W
Dimensions44 x 440 x 515 mm (HxWxD)
Mass13.2 kg
Operation Temp Range0°C to 40°C
Storage Temp Range-40°C to 70°C
Humidity Tolerance5% to 95%, non-condensing

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