diff --git a/device-types/Extreme Networks/X670-G2-48x-4q.yaml b/device-types/Extreme Networks/X670-G2-48x-4q.yaml
new file mode 100644
index 000000000..768a5e7d3
--- /dev/null
+++ b/device-types/Extreme Networks/X670-G2-48x-4q.yaml	
@@ -0,0 +1,126 @@
+---
+manufacturer: Extreme Networks
+model: X670-G2-48x-4q
+slug: extreme-networks-x670-g2-48x-4q
+u_height: 1
+is_full_depth: false
+weight: 6.7
+weight_unit: kg
+airflow: front-to-rear
+comments: '[Extreme Networks X670-G2-48x-4q Datasheet](https://documentation.extremenetworks.com/summit_16/GUID-A5526F9A-0149-4BB8-AD25-45E58AF94329.shtml#GUID-A5526F9A-0149-4BB8-AD25-45E58AF94329)'
+console-ports:
+  - name: Serial console port
+    type: rj-45
+interfaces:
+  - name: '1'
+    type: 10gbase-x-sfpp
+  - name: '2'
+    type: 10gbase-x-sfpp
+  - name: '3'
+    type: 10gbase-x-sfpp
+  - name: '4'
+    type: 10gbase-x-sfpp
+  - name: '5'
+    type: 10gbase-x-sfpp
+  - name: '6'
+    type: 10gbase-x-sfpp
+  - name: '7'
+    type: 10gbase-x-sfpp
+  - name: '8'
+    type: 10gbase-x-sfpp
+  - name: '9'
+    type: 10gbase-x-sfpp
+  - name: '10'
+    type: 10gbase-x-sfpp
+  - name: '11'
+    type: 10gbase-x-sfpp
+  - name: '12'
+    type: 10gbase-x-sfpp
+  - name: '13'
+    type: 10gbase-x-sfpp
+  - name: '14'
+    type: 10gbase-x-sfpp
+  - name: '15'
+    type: 10gbase-x-sfpp
+  - name: '16'
+    type: 10gbase-x-sfpp
+  - name: '17'
+    type: 10gbase-x-sfpp
+  - name: '18'
+    type: 10gbase-x-sfpp
+  - name: '19'
+    type: 10gbase-x-sfpp
+  - name: '20'
+    type: 10gbase-x-sfpp
+  - name: '21'
+    type: 10gbase-x-sfpp
+  - name: '22'
+    type: 10gbase-x-sfpp
+  - name: '23'
+    type: 10gbase-x-sfpp
+  - name: '24'
+    type: 10gbase-x-sfpp
+  - name: '25'
+    type: 10gbase-x-sfpp
+  - name: '26'
+    type: 10gbase-x-sfpp
+  - name: '27'
+    type: 10gbase-x-sfpp
+  - name: '28'
+    type: 10gbase-x-sfpp
+  - name: '29'
+    type: 10gbase-x-sfpp
+  - name: '30'
+    type: 10gbase-x-sfpp
+  - name: '31'
+    type: 10gbase-x-sfpp
+  - name: '32'
+    type: 10gbase-x-sfpp
+  - name: '33'
+    type: 10gbase-x-sfpp
+  - name: '34'
+    type: 10gbase-x-sfpp
+  - name: '35'
+    type: 10gbase-x-sfpp
+  - name: '36'
+    type: 10gbase-x-sfpp
+  - name: '37'
+    type: 10gbase-x-sfpp
+  - name: '38'
+    type: 10gbase-x-sfpp
+  - name: '39'
+    type: 10gbase-x-sfpp
+  - name: '40'
+    type: 10gbase-x-sfpp
+  - name: '41'
+    type: 10gbase-x-sfpp
+  - name: '42'
+    type: 10gbase-x-sfpp
+  - name: '43'
+    type: 10gbase-x-sfpp
+  - name: '44'
+    type: 10gbase-x-sfpp
+  - name: '45'
+    type: 10gbase-x-sfpp
+  - name: '46'
+    type: 10gbase-x-sfpp
+  - name: '47'
+    type: 10gbase-x-sfpp
+  - name: '48'
+    type: 10gbase-x-sfpp
+  - name: '49'
+    type: 40gbase-x-qsfpp
+  - name: '50'
+    type: 40gbase-x-qsfpp
+  - name: '51'
+    type: 40gbase-x-qsfpp
+  - name: '52'
+    type: 40gbase-x-qsfpp
+  - name: Mgmt
+    type: 1000base-t
+    mgmt_only: true
+module-bays:
+  - name: PSU-1
+    position: PSU-1
+  - name: PSU-2
+    position: PSU-2
diff --git a/device-types/Extreme Networks/X670-G2-72x.yaml b/device-types/Extreme Networks/X670-G2-72x.yaml
new file mode 100644
index 000000000..2671bbd97
--- /dev/null
+++ b/device-types/Extreme Networks/X670-G2-72x.yaml	
@@ -0,0 +1,165 @@
+---
+manufacturer: Extreme Networks
+model: X670-G2-72x
+slug: extreme-networks-x670-g2-72x
+u_height: 1
+is_full_depth: false
+weight: 7.0
+weight_unit: kg
+airflow: front-to-rear
+comments: '[Extreme Networks X670-G2-72x Datasheet](https://documentation.extremenetworks.com/summit_16/GUID-7ED31096-CD8D-46BB-ACC3-1E04EF9690E5.shtml#GUID-7ED31096-CD8D-46BB-ACC3-1E04EF9690E5)'
+console-ports:
+  - name: Serial console port
+    type: rj-45
+interfaces:
+  - name: '1'
+    type: 10gbase-x-sfpp
+  - name: '2'
+    type: 10gbase-x-sfpp
+  - name: '3'
+    type: 10gbase-x-sfpp
+  - name: '4'
+    type: 10gbase-x-sfpp
+  - name: '5'
+    type: 10gbase-x-sfpp
+  - name: '6'
+    type: 10gbase-x-sfpp
+  - name: '7'
+    type: 10gbase-x-sfpp
+  - name: '8'
+    type: 10gbase-x-sfpp
+  - name: '9'
+    type: 10gbase-x-sfpp
+  - name: '10'
+    type: 10gbase-x-sfpp
+  - name: '11'
+    type: 10gbase-x-sfpp
+  - name: '12'
+    type: 10gbase-x-sfpp
+  - name: '13'
+    type: 10gbase-x-sfpp
+  - name: '14'
+    type: 10gbase-x-sfpp
+  - name: '15'
+    type: 10gbase-x-sfpp
+  - name: '16'
+    type: 10gbase-x-sfpp
+  - name: '17'
+    type: 10gbase-x-sfpp
+  - name: '18'
+    type: 10gbase-x-sfpp
+  - name: '19'
+    type: 10gbase-x-sfpp
+  - name: '20'
+    type: 10gbase-x-sfpp
+  - name: '21'
+    type: 10gbase-x-sfpp
+  - name: '22'
+    type: 10gbase-x-sfpp
+  - name: '23'
+    type: 10gbase-x-sfpp
+  - name: '24'
+    type: 10gbase-x-sfpp
+  - name: '25'
+    type: 10gbase-x-sfpp
+  - name: '26'
+    type: 10gbase-x-sfpp
+  - name: '27'
+    type: 10gbase-x-sfpp
+  - name: '28'
+    type: 10gbase-x-sfpp
+  - name: '29'
+    type: 10gbase-x-sfpp
+  - name: '30'
+    type: 10gbase-x-sfpp
+  - name: '31'
+    type: 10gbase-x-sfpp
+  - name: '32'
+    type: 10gbase-x-sfpp
+  - name: '33'
+    type: 10gbase-x-sfpp
+  - name: '34'
+    type: 10gbase-x-sfpp
+  - name: '35'
+    type: 10gbase-x-sfpp
+  - name: '36'
+    type: 10gbase-x-sfpp
+  - name: '37'
+    type: 10gbase-x-sfpp
+  - name: '38'
+    type: 10gbase-x-sfpp
+  - name: '39'
+    type: 10gbase-x-sfpp
+  - name: '40'
+    type: 10gbase-x-sfpp
+  - name: '41'
+    type: 10gbase-x-sfpp
+  - name: '42'
+    type: 10gbase-x-sfpp
+  - name: '43'
+    type: 10gbase-x-sfpp
+  - name: '44'
+    type: 10gbase-x-sfpp
+  - name: '45'
+    type: 10gbase-x-sfpp
+  - name: '46'
+    type: 10gbase-x-sfpp
+  - name: '47'
+    type: 10gbase-x-sfpp
+  - name: '48'
+    type: 10gbase-x-sfpp
+  - name: '49'
+    type: 10gbase-x-sfpp
+  - name: '50'
+    type: 10gbase-x-sfpp
+  - name: '51'
+    type: 10gbase-x-sfpp
+  - name: '52'
+    type: 10gbase-x-sfpp
+  - name: '53'
+    type: 10gbase-x-sfpp
+  - name: '54'
+    type: 10gbase-x-sfpp
+  - name: '55'
+    type: 10gbase-x-sfpp
+  - name: '56'
+    type: 10gbase-x-sfpp
+  - name: '57'
+    type: 10gbase-x-sfpp
+  - name: '58'
+    type: 10gbase-x-sfpp
+  - name: '59'
+    type: 10gbase-x-sfpp
+  - name: '60'
+    type: 10gbase-x-sfpp
+  - name: '61'
+    type: 10gbase-x-sfpp
+  - name: '62'
+    type: 10gbase-x-sfpp
+  - name: '63'
+    type: 10gbase-x-sfpp
+  - name: '64'
+    type: 10gbase-x-sfpp
+  - name: '65'
+    type: 10gbase-x-sfpp
+  - name: '66'
+    type: 10gbase-x-sfpp
+  - name: '67'
+    type: 10gbase-x-sfpp
+  - name: '68'
+    type: 10gbase-x-sfpp
+  - name: '69'
+    type: 10gbase-x-sfpp
+  - name: '70'
+    type: 10gbase-x-sfpp
+  - name: '71'
+    type: 10gbase-x-sfpp
+  - name: '72'
+    type: 10gbase-x-sfpp
+  - name: Mgmt
+    type: 1000base-t
+    mgmt_only: true
+module-bays:
+  - name: PSU-1
+    position: PSU-1
+  - name: PSU-2