---
manufacturer: Arista
model: DCS-7280TR3-40C6-R
slug: arista-dcs-7280tr3-40c6-r
part_number: DCS-7280TR3-40C6-R
u_height: 1
weight: 21.2
weight_unit: lb
airflow: rear-to-front
is_full_depth: false
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 1
    position: '0'
  - name: PSU 2
    position: '1'
front_image: true
rear_image: false
interfaces:
  - name: Management1
    type: 1000base-t
    mgmt_only: true
  - name: Ethernet1
    type: 10gbase-t
  - name: Ethernet2
    type: 10gbase-t
  - name: Ethernet3
    type: 10gbase-t
  - name: Ethernet4
    type: 10gbase-t
  - name: Ethernet5
    type: 10gbase-t
  - name: Ethernet6
    type: 10gbase-t
  - name: Ethernet7
    type: 10gbase-t
  - name: Ethernet8
    type: 10gbase-t
  - name: Ethernet9
    type: 10gbase-t
  - name: Ethernet10
    type: 10gbase-t
  - name: Ethernet11
    type: 10gbase-t
  - name: Ethernet12
    type: 10gbase-t
  - name: Ethernet13
    type: 10gbase-t
  - name: Ethernet14
    type: 10gbase-t
  - name: Ethernet15
    type: 10gbase-t
  - name: Ethernet16
    type: 10gbase-t
  - name: Ethernet17
    type: 10gbase-t
  - name: Ethernet18
    type: 10gbase-t
  - name: Ethernet19
    type: 10gbase-t
  - name: Ethernet20
    type: 10gbase-t
  - name: Ethernet21
    type: 10gbase-t
  - name: Ethernet22
    type: 10gbase-t
  - name: Ethernet23
    type: 10gbase-t
  - name: Ethernet24
    type: 10gbase-t
  - name: Ethernet25
    type: 10gbase-t
  - name: Ethernet26
    type: 10gbase-t
  - name: Ethernet27
    type: 10gbase-t
  - name: Ethernet28
    type: 10gbase-t
  - name: Ethernet29
    type: 10gbase-t
  - name: Ethernet30
    type: 10gbase-t
  - name: Ethernet31
    type: 10gbase-t
  - name: Ethernet32
    type: 10gbase-t
  - name: Ethernet33
    type: 10gbase-t
  - name: Ethernet34
    type: 10gbase-t
  - name: Ethernet35
    type: 10gbase-t
  - name: Ethernet36
    type: 10gbase-t
  - name: Ethernet37
    type: 10gbase-t
  - name: Ethernet38
    type: 10gbase-t
  - name: Ethernet39
    type: 10gbase-t
  - name: Ethernet40
    type: 10gbase-t
# QSFP28(100G) ports can be broke into 4x25 with a model of [41-56]/[1-4]
  - name: Ethernet41/1
    type: 100gbase-x-qsfp28
  - name: Ethernet42/1
    type: 100gbase-x-qsfp28
  - name: Ethernet43/1
    type: 100gbase-x-qsfp28
  - name: Ethernet44/1
    type: 100gbase-x-qsfp28
  - name: Ethernet45/1
    type: 100gbase-x-qsfp28
  - name: Ethernet46/1
    type: 100gbase-x-qsfp28