---
manufacturer: Allied Telesis
model: x550-18XSQ
slug: allied-telesis-x550-18xsq
part_number: AT-x550-18XSQ
u_height: 1
is_full_depth: true
comments: '[x550 Specifications](https://www.alliedtelesis.com/sites/default/files/documents/datasheets/ati-x550series-ds.pdf)'
weight: 3.2
weight_unit: kg
console-ports:
  - name: Console
    type: rj-45
interfaces:
  - name: port1.0.1
    type: 10gbase-x-sfpp
  - name: port1.0.2
    type: 10gbase-x-sfpp
  - name: port1.0.3
    type: 10gbase-x-sfpp
  - name: port1.0.4
    type: 10gbase-x-sfpp
  - name: port1.0.5
    type: 10gbase-x-sfpp
  - name: port1.0.6
    type: 10gbase-x-sfpp
  - name: port1.0.7
    type: 10gbase-x-sfpp
  - name: port1.0.8
    type: 10gbase-x-sfpp
  - name: port1.0.9
    type: 10gbase-x-sfpp
  - name: port1.0.10
    type: 10gbase-x-sfpp
  - name: port1.0.11
    type: 10gbase-x-sfpp
  - name: port1.0.12
    type: 10gbase-x-sfpp
  - name: port1.0.13
    type: 10gbase-x-sfpp
  - name: port1.0.14
    type: 10gbase-x-sfpp
  - name: port1.0.15
    type: 10gbase-x-sfpp
  - name: port1.0.16
    type: 10gbase-x-sfpp
  - name: port1.0.17
    type: 100gbase-x-qsfp28
  - name: port1.0.18
    type: 100gbase-x-qsfp28
  - name: eth0
    type: 1000base-t
    mgmt_only: true
power-ports:
  - name: PSU
    type: iec-60320-c14
    maximum_draw: 111