Arista 48x 1/10GBASE-T RJ45 & 4x 40GbE QSFP+ Uplinks Data Switch DCS-7050TX-64-R

Arista 7050TX-64-R 48x 10GBASE-T RJ45 & 4x 40GbE QSFP+ Data Center Switch

The Arista DCS-7050TX-64-R is a high-performance Layer 2/Layer 3 managed data center switch designed for high-density 10-Gigabit Ethernet environments. It features 48 x 10GBASE-T RJ45 ports and 4 x 40GbE QSFP+ uplink ports, delivering high bandwidth and low latency for enterprise networks, virtualization clusters, and cloud data center deployments.

Part of the Arista 7050X series, this switch provides 1.28 Tbps switching capacity, a 960 Mpps forwarding rate, and ultra-low latency of approximately 3.3 microseconds, making it ideal for modern data center fabrics and top-of-rack (ToR) deployments.

Core Specifications

• Model: Arista DCS-7050TX-64-R

• Switch Type: Layer 2 / Layer 3 Managed Data Center Switch

• Ports:

  • 48 × 10GBASE-T RJ45

  • 4 × 40GbE QSFP+ uplinks

• Backward Compatibility: 100Mb / 1Gb / 10Gb on RJ45 ports

• Switching Capacity: 1.28 Tbps

• Forwarding Rate: 960 Million packets per second (Mpps)

• Latency: ~3.3 µs port-to-port

• Packet Buffer: 12 MB shared dynamic buffer

Network & Switching Capabilities

• MAC Address Table: Up to 32,000 entries

• VLAN Support: Up to 4,096 VLAN interfaces

• Layer 2 Features: VLANs, Link Aggregation (LACP), Spanning Tree

• Layer 3 Features: Static routing and advanced routing functions depending on EOS licensing

• Quality of Service (QoS): Advanced traffic prioritization and congestion management

These capabilities allow the switch to operate efficiently in large-scale data center networks and spine-leaf architectures.

Hardware Architecture

• CPU: Quad-Core x86 processor

• System Memory: Typically 4GB or 8GB DRAM

• Flash Storage: 4GB internal flash

• Optional Storage: Built-in SSD support for extended logging and packet capture

Management & Connectivity

Management interfaces include:

• 1 × 1000Base-T RJ-45 Management Port

• 1 × RS-232 RJ-45 Serial Console Port

• 1 × USB Type-A Port

The switch runs Arista EOS (Extensible Operating System), providing advanced automation, telemetry, and programmability features widely used in modern network infrastructures.

Cooling and Airflow

The “R” model indicates Rear-to-Front airflow, meaning:

• Air enters from the rear of the chassis

• Exhausts through the front (port side)

This airflow pattern is designed for data centers where switches face the cold aisle.

Power and Redundancy

• Power Supplies: 2 × hot-swappable 500W AC power supplies (PWR-500AC-R)

• Redundancy: 1+1 power redundancy

• Fan Modules: 4 × hot-swappable FAN-7000-R modules with N+1 redundancy

• Typical Power Consumption: ~387W

These redundant components ensure high availability and minimal downtime in mission-critical environments.

Physical Specifications

• Form Factor: 1U Rackmount

• Dimensions: 1.75" × 19" × 15.8"

• Weight: Approximately 18.96 lbs (8.6 kg)

Ideal Use Cases

The Arista 7050TX-64-R is commonly deployed for:

• Top-of-Rack (ToR) switching in data centers

• Virtualization and hyper-converged infrastructure networks

• Cloud computing platforms

• High-density 10GbE server connectivity

• Enterprise core or aggregation layers

Its combination of high port density, ultra-low latency, and advanced EOS networking features makes it a reliable solution for modern high-performance network environments.