---
manufacturer: Arista
model: DCS-7280CR3K-32D4A-R
slug: arista-dcs-7280cr3k-32d4a-r
part_number: DCS-7280CR3K-32D4A-R
u_height: 1
weight: 27
weight_unit: lb
airflow: rear-to-front
is_full_depth: true
comments: '[Arista 7280R3 Data Sheet](https://www.arista.com/assets/data/pdf/Datasheets/7280R3-Data-Sheet.pdf)'
console-ports:
  - name: Console
    type: rj-45
module-bays:
  - name: PSU 0
    position: '0'
  - name: PSU 1
    position: '1'
interfaces:
  - name: Ethernet1/1
    type: 100gbase-x-qsfp28
  - name: Ethernet2/1
    type: 100gbase-x-qsfp28
  - name: Ethernet3/1
    type: 100gbase-x-qsfp28
  - name: Ethernet4/1
    type: 100gbase-x-qsfp28
  - name: Ethernet5/1
    type: 100gbase-x-qsfp28
  - name: Ethernet6/1
    type: 100gbase-x-qsfp28
  - name: Ethernet7/1
    type: 100gbase-x-qsfp28
  - name: Ethernet8/1
    type: 100gbase-x-qsfp28
  - name: Ethernet9/1
    type: 100gbase-x-qsfp28
  - name: Ethernet10/1
    type: 100gbase-x-qsfp28
  - name: Ethernet11/1
    type: 100gbase-x-qsfp28
  - name: Ethernet12/1
    type: 100gbase-x-qsfp28
  - name: Ethernet13/1
    type: 100gbase-x-qsfp28
  - name: Ethernet14/1
    type: 100gbase-x-qsfp28
  - name: Ethernet15/1
    type: 100gbase-x-qsfp28
  - name: Ethernet16/1
    type: 100gbase-x-qsfp28
  - name: Ethernet17/1
    type: 100gbase-x-qsfp28
  - name: Ethernet18/1
    type: 100gbase-x-qsfp28
  - name: Ethernet19/1
    type: 100gbase-x-qsfp28
  - name: Ethernet20/1
    type: 100gbase-x-qsfp28
  - name: Ethernet21/1
    type: 100gbase-x-qsfp28
  - name: Ethernet22/1
    type: 100gbase-x-qsfp28
  - name: Ethernet23/1
    type: 100gbase-x-qsfp28
  - name: Ethernet24/1
    type: 100gbase-x-qsfp28
  - name: Ethernet25/1
    type: 100gbase-x-qsfp28
  - name: Ethernet26/1
    type: 100gbase-x-qsfp28
  - name: Ethernet27/1
    type: 100gbase-x-qsfp28
  - name: Ethernet28/1
    type: 100gbase-x-qsfp28
  - name: Ethernet29/1
    type: 100gbase-x-qsfp28
  - name: Ethernet30/1
    type: 100gbase-x-qsfp28
  - name: Ethernet31/1
    type: 100gbase-x-qsfp28
  - name: Ethernet32/1
    type: 100gbase-x-qsfp28
  - name: Ethernet33/1
    type: 400gbase-x-qsfpdd
  - name: Ethernet34/1
    type: 400gbase-x-qsfpdd
  - name: Ethernet35/1
    type: 400gbase-x-qsfpdd
  - name: Ethernet36/1
    type: 400gbase-x-qsfpdd
  - name: Management1
    type: 1000base-t
    mgmt_only: true
