What 40GbE uplink options are available on the DCS-7050SX2-128-R?

The DCS-7050SX2-128-R includes 8x 40GbE QSFP+ ports. These can be used as uplinks to spine or aggregation layers or for interconnecting switches. The presence of eight 40GbE interfaces provides flexibility in designing high-bandwidth uplink topologies in 10 or 40GbE data center networks.

What is the physical form factor of the DCS-7050SX2-128-R?

This switch is specified as a 2U data center switch. The 2U height allows it to deliver high port density while fitting within standard 19-inch racks. For planning purposes, procurement and infrastructure teams can treat it as a 2U asset when modeling rack space and cabling layouts.

What airflow direction does the DCS-7050SX2-128-R use?

The DCS-7050SX2-128-R is described as a data center switch with front-to-rear airflow. This means cool air is drawn from the front of the chassis and exhausted out the rear. Such airflow is designed to align with common hot aisle and cold aisle configurations in modern data centers.

Is the DCS-7050SX2-128-R suitable for data center environments?

Yes, it is categorized as a 10 or 40GbE data center switch. It combines 96x 10GbE SFP+ ports, 8x 40GbE QSFP+ ports, a 2U design, and front-to-rear airflow, all of which are characteristics tailored for deployment in structured data center environments and network fabrics.

DCS-7050SX2-128-R - Arista Networks DCS-7050SX2-128-R 96x10GbE 8x40GbE switch

Name: Arista Networks DCS-7050SX2-128-R 96x10GbE 8x40GbE switch
Brand: Arista
SKU: DCS-7050SX2-128-R
Price: 958 USD
Availability: InStock

DCS-7050SX2-128-R - Arista Networks DCS-7050SX2-128-R 96x10GbE 8x40GbE switch | US IT Hardware

Product overview

The Arista Networks DCS-7050SX2-128-R is a data center switch designed for high-density 10GbE and 40GbE connectivity. It provides 96x 10GbE SFP+ ports and 8x 40GbE QSFP+ ports in a 2U form factor, enabling flexible aggregation and leaf or spine roles within modern network fabrics. The switch is categorized as a 10 or 40GbE data center switch with front-to-rear airflow, supporting standard hot aisle and cold aisle layouts in enterprise and cloud environments. This configuration allows network architects to consolidate large numbers of 10GbE server links while maintaining 40GbE uplinks toward aggregation or core layers. The platform is suitable for organizations standardizing on SFP+ and QSFP+ optics and cabling, and it is positioned for data center deployments that require predictable airflow and structured high-port-density switching without compromising rack space efficiency.

96x 10GbE SFP+ ports for dense server connectivity
8x 40GbE QSFP+ ports for uplinks or aggregation
2U data center switch form factor
Front-to-rear airflow for hot and cold aisle layouts
10 or 40GbE data center classification
Arista Networks DCS-7050SX2-128-R model

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Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	DCS-7050SX2-128-R
Brand	Arista
Condition	Refurbished
Model	DCS-7050SX2-128-R
Series	7050SX2
Rack Units	2U
Form Factor	2U rack-mount
Chassis Type	Fixed-configuration rack-mount switch chassis
Product Line	Arista 7050X2 Series
Product Type	10/40GbE data center switch
Layer Support	Wire-speed Layer 2 and Layer 3 forwarding

Best for

Leaf switching
Use the 96x 10GbE SFP+ ports to connect high-density server or top-of-rack links, with 8x 40GbE QSFP+ ports available for uplinks in a leaf role within a data center fabric.
Spine aggregation
Leverage the combination of 96x 10GbE SFP+ and 8x 40GbE QSFP+ interfaces to aggregate multiple leaf switches or access layers in a spine configuration in 10 or 40GbE environments.
High-density access
Deploy in racks requiring many 10GbE server connections, where the 2U design with 96x 10GbE SFP+ ports supports dense access connectivity while preserving rack space.
Data center fabrics
The 10 or 40GbE data center classification and mix of SFP+ and QSFP+ ports make this switch suitable for structured data center fabrics using front-to-rear airflow cooling designs.
Optics-based aggregation
Ideal when standardizing on SFP+ and QSFP+ optics and cabling, using the 96x 10GbE and 8x 40GbE ports for flexible aggregation and uplink strategies.

Frequently asked questions

How many 10GbE ports does the Arista DCS-7050SX2-128-R provide?

Details

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Operating System	Arista Extensible Operating System (EOS)

Primary Use Case	High-performance data center networking; cloud computing; enterprise networking; virtualized environments

Airflow Direction	Front-to-rear airflow

Fan Configuration	4x hot-swappable fans, front-to-rear airflow

Included Components	2x Power Supply Units (PWR-500AC-R); 4x Fans (FAN-7002-R)

Shared Packet Buffer Size	Up to 16 MB shared packet buffer

Latency	As low as 550 ns
Lifecycle Status	End of Life

Power Supply Type	Redundant and hot-swappable AC power supplies
Included Power Supplies	2x PWR-500AC-R power supply units

Networking Ports & Interfaces

10GbE SFP+ Ports	96 x 1/10GbE SFP+ ports
Uplink Port Type	40GbE QSFP+
40GbE QSFP+ Ports	8 x 40GbE QSFP+ ports
Primary Port Type	1/10GbE SFP+
Switching Capacity	2.56 Tbps
Total Network Interfaces	105 network interfaces
QSFP+ Port Breakout Capability	Each QSFP+ port supports 4x10GbE breakout
Typical Power Efficiency per 10GbE Port	Less than 2 W per 10GbE port

Arista Networks DCS-7050SX2-128-R 96x10GbE 8x40GbE switch