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by Arista
Product Line: Arista Networks
Product Type: Switch
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Product Description

The DCS-7500R2A-36CQ-LC is a high-capacity network line card, featuring 36 port 100GbE QSFP100 with a maximum capability to support up to 144 10GbE ports, 144 25GbE ports, 36 40GbE ports, 72 50GbE ports, and 36 100GbE ports. It is equipped with a 16 GB port buffer, AlgoMatch technology for wirespeed packet matching, and accelerated sFlow for enhanced network monitoring and performance. The card operates within a temperature range of 0°C to 40°C, supports a N+N grid redundant power system, and offers 1+1 supervisor redundancy, ensuring reliable operation in various environmental conditions.

Key Feature for the DCS-7500R2A-36CQ-LC

  • What is the maximum number of 10GbE ports supported?
    The maximum number of 10GbE ports supported is 144.
  • Does the 36 port 100GbE QSFP100 support AlgoMatch technology?
    Yes, the 36 port 100GbE QSFP100 includes AlgoMatch technology for enhanced packet processing.
  • What is the total port buffer size of the device?
    The total port buffer size is 16 GB.
  • Can the 36 port 100GbE QSFP100 line card facilitate accelerated sFlow?
    Yes, it supports accelerated sFlow for efficient network monitoring and traffic analysis.
  • What are the maximum power consumption values for typical and maximum usage?
    Typical power consumption is 830W, with a maximum of 894W.
  • What are the physical dimensions of the 36 port 100GbE QSFP100 line card?
    Dimensions are 17.5” width, 1.75” height, and 23” depth (44.5 x 4.5 x 58.4cm).
  • What operating temperature range is supported by the device?
    Supported operating temperature ranges from min 0°C to max 40°C.
  • How does the 36 port 100GbE QSFP100 handle redundancy?
    It features N+N Grid redundant power system and 1+1 Supervisor redundancy for enhanced reliability.
  • What is the weight of the 36 port 100GbE QSFP100 line card?
    The line card weighs 16.1 lbs (7.3 kg).
  • What altitude range can the 36 port 100GbE QSFP100 operate within?
    It can operate at altitudes from 0 ft to 10,000 ft.

Product Review

The Arista DCS-7500R2A-36CQ-LC line card impresses with its capacity for high-density, high-speed networking, supporting up to 36 100GbE ports with a generous 16 GB port buffer, ensuring efficient data handling and reduced latency. However, its high power consumption, peaking at 894W, may raise concerns for energy-conscious deployments. Additionally, the card's advanced features such as AlgoMatch for enhanced packet matching and accelerated sFlow for detailed traffic analysis, alongside its redundancy capabilities, make it a solid choice for demanding data center environments, albeit at a significant power and cooling cost.


The Arista DCS-7500R2A-36CQ-LC is a high-performance network switch designed for data center environments. It features 36 ports of 100GbE QSFP100, providing significant bandwidth for demanding applications and data throughput needs. This switch is capable of supporting various port configurations, making it a versatile solution for any networking setup. It can support up to 144 10GbE ports, 144 25GbE ports, 36 40GbE ports, 72 50GbE ports, and 36 100GbE ports, offering flexibility in network design and scalability. One of the key features of the Arista DCS-7500R2A-36CQ-LC is the AlgoMatch technology, which enables wirespeed line card performance. This ensures efficient and fast packet matching, crucial for maintaining high throughput and minimizing latency in network operations. Additionally, the switch is equipped with a 16 GB port buffer, which aids in handling traffic bursts and preventing packet loss, ensuring reliable data transmission. The switch also supports accelerated sFlow, a technology that allows for enhanced network monitoring and analysis without compromising performance. This feature is essential for diagnosing network issues and ensuring optimal performance. Weighing 16.1 lbs (7.3 kg) and measuring 17.5” x 1.75” x 23” (44.5 x 4.5 x 58.4cm), the Arista DCS-7500R2A-36CQ-LC is designed to fit into standard data center racks. It operates within a temperature range of 0°C to 40°C and can be stored in temperatures ranging from -40°C to 70°C. The switch's operating humidity range is 5% to 95%, and it can function at altitudes up to 10,000 ft, ensuring reliability across various environmental conditions. Power efficiency is a critical consideration in data centers, and the Arista DCS-7500R2A-36CQ-LC addresses this with a typical power consumption of 830W and a maximum of 894W. This makes it an energy-efficient option for enterprises looking to optimize their power usage and reduce operational costs. For enhanced reliability and uptime, the switch features an N+N Grid redundant power system and 1+1 Supervisor redundancy. These features ensure continuous operation and minimal downtime, which is crucial for mission-critical environments. Key highlights of the Arista DCS-7500R2A-36CQ-LC include: -
  • Support for a wide range of port speeds, ensuring flexibility in network design.
  • AlgoMatch technology for efficient packet processing.
  • High port buffer capacity for managing traffic spikes.
The Arista DCS-7500R2A-36CQ-LC is suited for data centers that require high bandwidth, low latency, and reliability. Its advanced features and specifications make it a powerful tool for managing complex networks and supporting data-intensive applications.


Component IdentifierArista DCS-7500R2A-36CQ-LC
Ports36x 100GbE QSFP100
AlgoMatch SupportYes, at full line-rate
Maximum 10GbE Interface Count144
Maximum 25GbE Interface Count144
Maximum 40GbE Interface Count36
Maximum 50GbE Interface Count72
Maximum 100GbE Interface Count36
Memory for Port Queueing16 GB
AlgoMatch TechnologyEnabled
sFlow AccelerationSupported
Mass16.1 lbs (7.3 kg)
Power Consumption (Typical/Peak)830W / 894W
Dimensions (Width x Height x Depth)17.5” x 1.75” x 23” (44.5 x 4.5 x 58.4 cm)
Minimum Operating Temperature0°C
Maximum Operating Temperature40°C
Minimum Storage Temperature-40°C
Maximum Storage Temperature70°C
Minimum Relative Humidity5%
Maximum Relative Humidity95%
Minimum Operating Altitude0 ft
Maximum Operating Altitude10,000 ft
Power Redundancy ConfigurationN+N Grid redundancy
Supervisor Redundancy1+1

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