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Silver 2U rack-mount network switch with 64 QSFP28 ports and rear fans

Arista Networks, Inc.

Arista Networks, Inc. DCS-7250QX-64-R network switch 64 x 100GbE QSFP28

SKU CH-V5VQ-N69P7 MPN DCS-7250QX-64-R

A 2 RU switch with 64 x 100GbE QSFP28 ports, dual management ports, console and USB, plus dual 1100 W rear-to-front power supplies and fans

  • 64 x 100GbE QSFP28 ports deliver massive 100 Gbps density
  • 2 RU form factor fits high-capacity switching in minimal rack space
  • Dual 1100 W hot-swap AC supplies with rear-to-front airflow keep the chassis powered through module changes
  • Four hot-swap fans with rear-to-front airflow maintain cooling during fan replacement
  • Dedicated management via two 10/100/1000 RJ-45 ports, RS-232 console and USB gives flexible out-of-band access

64-port 100GbE QSFP28 data-centre switch

The Arista DCS-7250QX-64-R provides 64 QSFP28 ports operating at 100GbE in a 2 RU chassis. It targets network operators building high-density leaf or spine layers. Rear-to-front airflow matches hot-aisle/cold-aisle layouts. Buyers needing fewer than 64 ports or front-to-rear cooling should evaluate other models.

Thermals, noise and power draw

Two 1100W hot-swappable AC power supplies and four hot-swappable fans deliver rear-to-front airflow. Redundant supplies and fans allow component replacement without service interruption. Power draw scales with transceiver count and traffic load; acoustic output varies with fan speed under thermal load.

Bundled accessories and software impact

The switch ships with Arista EOS pre-installed, providing a Linux-based network operating system with programmable APIs and state streaming. Two RJ-45 management ports, one RS-232 serial console and one USB port enable out-of-band control. Rack mounts are not included; customers must source compatible rails separately.

Highlights

  • 64 x 100GbE QSFP28 ports deliver massive 100 Gbps density
  • 2 RU form factor fits high-capacity switching in minimal rack space
  • Dual 1100 W hot-swap AC supplies with rear-to-front airflow keep the chassis powered through module changes
  • Four hot-swap fans with rear-to-front airflow maintain cooling during fan replacement
  • Dedicated management via two 10/100/1000 RJ-45 ports, RS-232 console and USB gives flexible out-of-band access

Specifications

BrandArista
ModelDCS-7250QX-64-R

Questions about this item

How is the 2 RU switch mounted in a standard rack and what step is often missed?

Secure the chassis with front rack screws; the rear-to-front airflow units require clear space behind the rack so hot exhaust does not recirculate into the front intake.

Which field-replaceable components will need attention after extended operation?

Two 1100W hot-swappable AC power supplies and four hot-swappable fan modules, all using rear-to-front airflow, can be swapped without downtime when they degrade.

What throughput ceiling appears first when all 64 QSFP28 ports run at line rate?

The 64 ports each deliver 100 GbE, so the combined bidirectional fabric limit is reached before any single port saturates, capping total sustained throughput.

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