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by Arista
Product Line: Arista DCS-7300X Series
Product Type: Switch
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Original price $0.00 - Original price $1,001.00
Original price
$0.00 - $1,001.00
Current price $0.00
Title: Surplus

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Product Description

The DCS-7308X-FM-R is a Fabric-X module designed for the 7308 chassis, supporting rear-to-front air flow, and is necessary for operation in slots 1-4 with 2 supervisor slots, 8 linecard slots, 4 fabric module slots, and 6 power supply slots. It boasts a high-density network capability with a maximum 10GbE port density of 1,024 ports and a maximum 40GbE port density of 256 ports, alongside a maximum throughput of 20 Tbps and 15 Bpps. With physical dimensions of 17.3” x 3.7” x 11.8” and a weight of 17.3 lbs, it operates efficiently within a temperature range of 0°C to 40°C, supporting environments up to 10,000 ft in altitude.

Key Feature for the DCS-7308X-FM-R

  • What chassis is the Fabric-X module designed for?
    The Fabric-X module is specifically designed for the 7308 chassis.
  • How many supervisor and linecard slots does the 7308 chassis support?
    The 7308 chassis supports 2 supervisor slots and 8 linecard slots.
  • What is the air flow direction of the Fabric-X (integrated fans) module?
    The Fabric-X module supports a rear-to-front air flow direction.
  • What are the physical dimensions of the Fabric-X module?
    The dimensions are 17.3” x 3.7” x 11.8” (43.9 x 9.4 x 30cm).
  • How much power does the Fabric-X module typically use, and what is its maximum?
    It typically uses 195W of power, with a maximum of 343W.
  • What is the maximum 10GbE and 40GbE port density supported by the Fabric-X module?
    The maximum 10GbE port density is 1,024 ports, and for 40GbE, it is 256 ports.
  • What are the minimum and maximum operating temperatures for the Fabric-X module?
    The operating temperature ranges from a minimum of 0°C to a maximum of 40°C.
  • How does the Fabric-X module handle redundancy?
    It supports redundancy through graceful degradation.
  • What is the weight of the Fabric-X module?
    The module weighs 17.3 lbs (7.8 kg).
  • What are the maximum throughput and packets per second the Fabric-X module can handle?
    The maximum throughput is 20 Tbps, and it can handle 15 billion packets per second.

Product Review

The Arista DCS-7308X-FM-R Fabric-X module offers high scalability with support for up to 1,024 10GbE ports or 256 40GbE ports, catering to dense network environments. However, its operating temperature range is limited to 0°C to 40°C, which may restrict deployment in extreme conditions. The module's design ensures efficient cooling and redundancy with rear-to-front air flow and multiple power supply and fan modules, yet its maximum power consumption of 343W could impact long-term operational costs.


The Arista DCS-7308X-FM-R is a critical component within the Arista 7308 chassis, designed to cater to the network's core infrastructure needs. This Fabric-X module is not just a hardware unit but a cornerstone for enhancing the chassis's performance, particularly in slots 1-4. It is engineered to facilitate rear-to-front air cooling, ensuring the system maintains optimum temperature for reliable performance. This module is designed to work seamlessly within an ecosystem that includes two supervisor slots, eight linecard slots, and four fabric module slots, alongside six power supply slots. With the capability to house up to 16 fan modules, it ensures that the system's cooling is both efficient and effective. One of the standout features of the Arista DCS-7308X-FM-R is its support for redundancy and graceful degradation. This means that the system is designed to maintain operational integrity and continue functioning even when certain components fail, minimizing disruptions and maintaining network reliability. In terms of physical specifications, the module measures 17.3” in height, 3.7” in width, and 11.8” in depth (43.9 x 9.4 x 30cm), with a weight of 17.3 lbs (7.8 kg). Despite its compact size, it packs a powerful punch with a typical power consumption of 195W, which can peak up to 343W under maximum load.
  • Maximum 10GbE Port Density: The Arista DCS-7308X-FM-R supports up to 1,024 10GbE ports, making it an ideal solution for environments requiring high-density network connectivity.
  • Maximum 40GbE Port Density: For networks demanding higher bandwidth, this module accommodates up to 256 40GbE ports.
  • Throughput and Packets per Second: It boasts an impressive maximum throughput of 20 Tbps and 15 billion packets per second, ensuring that data flows through the network efficiently and without bottlenecks.
The operating temperature range of this module spans from 0°C to 40°C, with a storage temperature range from -25°C to 70°C. This wide temperature range ensures that the module can operate in various environments without compromising performance. The relative humidity tolerance ranges from a minimum of 5% to a maximum of 95%, and it is designed to operate at altitudes ranging from sea level up to 10,000 feet. These specifications ensure that the Arista DCS-7308X-FM-R can be deployed in a wide range of environmental conditions without affecting its performance or reliability. In conclusion, the Arista DCS-7308X-FM-R is engineered to meet the demands of modern data centers and high-performance computing environments. Its design emphasizes efficiency, scalability, and reliability, making it an essential component for businesses looking to bolster their network infrastructure. With its high port density, significant throughput capacity, and robust environmental tolerances, this Fabric-X module represents a strategic investment in network infrastructure that can adapt to evolving business needs.


Part Number and Maker Arista DCS-7308X-FM-R
Product Type Fabric-X (includes integrated cooling fans) for 7308 chassis
Installation Requirement Necessary for positions 1 to 4
Airflow Direction Back to front
Management Module Slots 2
Interface Card Slots 8
Fabric Expansion Module Positions 4
Power Unit Bays 6
Cooling Units 16
Redundancy Feature Graceful performance reduction
Size (Height x Width x Depth) 43.9 cm x 9.4 cm x 30 cm
Mass 7.8 kg
Power Usage (Typical/Peak) 195W / 343W
Max Capacity for 10GbE Interfaces 1,024
Max Capacity for 40GbE Interfaces 256
Data Rate / Packet Rate 20 Terabits per second / 15 Billion packets per second
Min Operating Temperature 0°C
Max Operating Temperature 40°C
Min Storage Temperature -25°C
Max Storage Temperature 70°C
Min Humidity Level 5%
Max Humidity Level 95%
Lowest Operating Elevation 0 ft
Highest Operating Elevation 10,000 ft

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