diff --git a/device-types/Mellanox/SX6012F-1BFS.yaml b/device-types/Mellanox/SX6012F-1BFS.yaml
index 4e9517e4f..422c50fd2 100644
--- a/device-types/Mellanox/SX6012F-1BFS.yaml
+++ b/device-types/Mellanox/SX6012F-1BFS.yaml
@@ -6,6 +6,7 @@ part_number: MSX6012F-1BFS
 airflow: rear-to-front
 weight: 2.98
 weight_unit: kg
+u_height: 0
 subdevice_role: child
 console-ports:
   - name: Serial Console
diff --git a/device-types/Mellanox/SX6012F-1BRS.yaml b/device-types/Mellanox/SX6012F-1BRS.yaml
index 8bcabaaa3..2201d52de 100644
--- a/device-types/Mellanox/SX6012F-1BRS.yaml
+++ b/device-types/Mellanox/SX6012F-1BRS.yaml
@@ -6,6 +6,7 @@ part_number: MSX6012F-1BRS
 airflow: front-to-rear
 weight: 2.98
 weight_unit: kg
+u_height: 0
 subdevice_role: child
 console-ports:
   - name: Serial Console
diff --git a/device-types/Mellanox/SX6012F-2BFS.yaml b/device-types/Mellanox/SX6012F-2BFS.yaml
index 0a58424db..95c2e28cd 100644
--- a/device-types/Mellanox/SX6012F-2BFS.yaml
+++ b/device-types/Mellanox/SX6012F-2BFS.yaml
@@ -6,6 +6,7 @@ part_number: MSX6012F-2BFS
 airflow: rear-to-front
 weight: 2.98
 weight_unit: kg
+u_height: 0
 subdevice_role: child
 console-ports:
   - name: Serial Console
diff --git a/device-types/Mellanox/SX6012F-2BRS.yaml b/device-types/Mellanox/SX6012F-2BRS.yaml
index 8d0d2ef52..e85d739d0 100644
--- a/device-types/Mellanox/SX6012F-2BRS.yaml
+++ b/device-types/Mellanox/SX6012F-2BRS.yaml
@@ -6,6 +6,7 @@ part_number: MSX6012F-2BRS
 airflow: front-to-rear
 weight: 2.98
 weight_unit: kg
+u_height: 0
 subdevice_role: child
 console-ports:
   - name: Serial Console
diff --git a/device-types/Mellanox/SX6012T-1BFS.yaml b/device-types/Mellanox/SX6012T-1BFS.yaml
index 5ce67cb66..7112ca9de 100644
--- a/device-types/Mellanox/SX6012T-1BFS.yaml
+++ b/device-types/Mellanox/SX6012T-1BFS.yaml
@@ -6,6 +6,7 @@ part_number: MSX6012T-1BFS
 airflow: rear-to-front
 weight: 2.98
 weight_unit: kg
+u_height: 0
 subdevice_role: child
 console-ports:
   - name: Serial Console
diff --git a/device-types/Mellanox/SX6012T-2BFS.yaml b/device-types/Mellanox/SX6012T-2BFS.yaml
index 612506a13..9d1f93244 100644
--- a/device-types/Mellanox/SX6012T-2BFS.yaml
+++ b/device-types/Mellanox/SX6012T-2BFS.yaml
@@ -6,6 +6,7 @@ part_number: MSX6012T-2BFS
 airflow: rear-to-front
 weight: 2.98
 weight_unit: kg
+u_height: 0
 subdevice_role: child
 console-ports:
   - name: Serial Console