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Silver 1U rack switch front with 56 QSFP+ and 12 QSFP28 ports

Arista Networks, Inc.

Arista Networks, Inc. DCS-7280QR-C36-R network switch 56×40GbE QSFP+ 12×100GbE QSFP28

SKU CH-JYWV-DT9KT MPN DCS-7280QR-C36-R

A 1 RU network switch with 56×40GbE QSFP+ ports, 12×100GbE QSFP28 uplinks, dual 745W power supplies and rear-to-front airflow

  • High-density connectivity with 56 ports of 40GbE QSFP+
  • 12 uplink ports of 100GbE QSFP28 for high-speed aggregation
  • Compact 1 RU form factor saves valuable rack space
  • Dual 745W hot-swappable AC power supplies provide redundancy
  • Four hot-swappable fans with rear-to-front airflow ensure cooling

56-port 40GbE QSFP+ switch for dense data-centre

The Arista DCS-7280QR-C36-R is a 1 RU switch delivering 56 ports of 40GbE QSFP+ connectivity for high-density leaf or spine deployments. It targets network engineers who need wire-speed forwarding in a single rack unit without sacrificing uplink capacity. The platform suits environments where consistent low latency and deep buffers matter for east-west traffic patterns.

Rear-to-front airflow with hot-swap power and fans

Two 745W hot-swappable AC power supplies and four hot-swappable fans use rear-to-front airflow to match cold-aisle containment layouts. Twelve 100GbE QSFP28 uplink ports provide flexible breakout options for aggregation to core switches. Management access includes a 10/100/1000 RJ-45 port, an RS-232 serial console and a USB port; rack mounts are not included and must be sourced separately.

Replaces older 10GbE or 40GbE fixed-configuration

The jump is worth it when you need 100GbE uplinks alongside dense 40GbE access ports in a 1 RU form factor. Buyers who require integrated rack rails or front-to-rear cooling should evaluate other models. The switch also does not suit teams lacking QSFP+/QSFP28 transceiver inventory or the operational expertise to manage Arista EOS in large-scale fabrics.

Highlights

  • High-density connectivity with 56 ports of 40GbE QSFP+
  • 12 uplink ports of 100GbE QSFP28 for high-speed aggregation
  • Compact 1 RU form factor saves valuable rack space
  • Dual 745W hot-swappable AC power supplies provide redundancy
  • Four hot-swappable fans with rear-to-front airflow ensure cooling

Specifications

BrandArista
ModelDCS-7280QR-C36-R

Questions about this item

What speed does the QSFP28 uplink interface actually reach?

Each of the 12 QSFP28 uplink ports operates at 100GbE line rate.

What rack space and mounting hardware does the 1 RU chassis require?

The switch occupies 1 RU; rack mounts are not included and must be sourced separately.

How are the hot-swap power supplies and fans installed, and what mistake should be avoided?

Insert the two 745W AC supplies and four fans from the rear; the common error is mixing airflow direction — this unit uses rear-to-front airflow only.

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