---
manufacturer: Arista
model: DCS-7289R3A-SC-F
slug: arista-dcs-7289r3a-sc-f
part_number: DCS-7289R3A-SC-F
u_height: 4
weight: 16.3
weight_unit: kg
airflow: front-to-rear
is_full_depth: false
comments: '[Arista 7280R3A Modular Series / 7289R3A-SC 100/200/400G Data Center Switches](https://www.arista.com/assets/data/pdf/Datasheets/7280R3A-Modular-Datasheet.pdf)'
module-bays:
# supports Power Supplies PWR-1900-AC/DC
  - name: PSU 1
    position: '1'
  - name: PSU 2
    position: '2'
  - name: PSU 3
    position: '3'
  - name: PSU 4
    position: '4'
# supports Supervisor Modules DCS-7289-SUP-D, DCS-7289-SUPS-D
  - name: Supervisor1
    position: '1'
# supports Interface Modules DCS-7368-16S, DCS-7358-16C, DCS-7368-4D, DCS-7368-4P
  - name: Linecard2
    position: '2'
  - name: Linecard3
    position: '3'
  - name: Linecard4
    position: '4'
  - name: Linecard5
    position: '5'
  - name: Linecard6
    position: '6'
  - name: Linecard7
    position: '7'
  - name: Linecard8
    position: '8'
  - name: Linecard9
    position: '9'
  - name: Linecard10
    position: '10'