We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver 1U rack switch with 48 SFP28 and 8 QSFP28 ports, rear airflow, two power supplies, four fans

Arista Networks, Inc.

Arista Networks DCS-7280SR3-48YC8-R 48x25GbE SFP28 8x100GbE QSFP28 network switch

SKU CH-FWTA-CP1TS MPN DCS-7280SR3-48YC8-R

A 1 RU switch with 48 25GbE SFP28 ports and 8 100GbE QSFP28 uplinks, plus dual 747W hot-swap AC supplies and four hot-swap fans for rear-to-front airflow

  • High-density 48-port 25GbE SFP28 connectivity for server aggregation
  • Eight 100GbE QSFP28 uplinks deliver high-speed backbone links
  • 1 RU form factor maximises rack density in data centres
  • Dual 747 W hot-swappable AC power supplies provide redundant power
  • Four hot-swappable fans with rear-to-front airflow ensure reliable cooling

48-port 25GbE switch with 8 100GbE uplinks

The Arista DCS-7280SR3-48YC8-R provides 48 SFP28 ports operating at 25GbE and eight QSFP28 ports at 100GbE in a 1 RU form factor. It runs Arista EOS and ships with two 747W hot-swappable AC power supplies plus four hot-swappable fans, all configured for rear-to-front airflow. Rack mounts are not included.

Sustained load handling

Dual 747W power supplies and four hot-swappable fans maintain cooling and power redundancy during continuous high-throughput operation. Rear-to-front airflow matches typical data-centre hot-aisle/cold-aisle layouts so the switch can sustain full port utilisation without thermal throttling.

SFP28 and QSFP28 interface limits

Each SFP28 port supports 25GbE over compatible transceivers and cables, while each QSFP28 port supports 100GbE. Maximum link distance and cable type depend on the specific transceiver modules chosen, which are not included with the switch.

Highlights

  • High-density 48-port 25GbE SFP28 connectivity for server aggregation
  • Eight 100GbE QSFP28 uplinks deliver high-speed backbone links
  • 1 RU form factor maximises rack density in data centres
  • Dual 747 W hot-swappable AC power supplies provide redundant power
  • Four hot-swappable fans with rear-to-front airflow ensure reliable cooling

Specifications

BrandArista
ModelDCS-7280SR3-48YC8-R

Questions about this item

How much power do the two 747W AC supplies draw when the DCS-7280SR3-48YC8-R runs continuously?

Each supply is rated at 747 W; total draw depends on load and the 48x25GbE plus 8x100GbE ports in use.

Which transceivers and cables must I provide for the 48 SFP28 and 8 QSFP28 ports?

You need 25GbE SFP28 modules or DACs for the 48 downlink ports and 100GbE QSFP28 modules or DACs for the 8 uplink ports.

Will the rear-to-front airflow match my existing front-to-rear rack cooling?

The switch uses rear-to-front airflow with four hot-swappable fans, so it exhausts heat toward the cold aisle, opposite to front-to-rear gear.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.