---
manufacturer: Allied Telesis
model: AT-MCR12
slug: allied-telesis-at-mcr12
part_number: AT-MCR12
u_height: 3
is_full_depth: false
airflow: passive
weight: 9.5
weight_unit: lb
module-bays:
  - name: Power Supply A
    position: A
    label: PSU 1
  - name: Power Supply B
    position: B
    label: PSU 2
  - name: Slot 1
    position: '1'
  - name: Slot 2
    position: '2'
  - name: Slot 3
    position: '3'
  - name: Slot 4
    position: '4'
  - name: Slot 5
    position: '5'
  - name: Slot 6
    position: '6'
  - name: Slot 7
    position: '7'
  - name: Slot 8
    position: '8'
  - name: Slot 9
    position: '9'
  - name: Slot 10
    position: '10'
  - name: Slot 11
    position: '11'
  - name: Slot 12
    position: '12'