diff --git a/device/mellanox/x86_64-nvidia_sn4280-r0/platform.json b/device/mellanox/x86_64-nvidia_sn4280-r0/platform.json
index d2a798d25fce..c9370bd6d7f4 100644
--- a/device/mellanox/x86_64-nvidia_sn4280-r0/platform.json
+++ b/device/mellanox/x86_64-nvidia_sn4280-r0/platform.json
@@ -653,6 +653,10 @@
             "interface": {
                 "Ethernet224": "Ethernet0"
             },
+            "serial-console": {
+                "device": "ttyUSB0",
+                "baud-rate": "115200"
+            },
             "rshim_info": "rshim0",
             "bus_info": "0000:08:00.0"
         },
@@ -661,6 +665,10 @@
             "interface": {
                 "Ethernet232": "Ethernet0"
             },
+            "serial-console": {
+                "device": "ttyUSB1",
+                "baud-rate": "115200"
+            },
             "rshim_info": "rshim1",
             "bus_info": "0000:07:00.0"
         },
@@ -669,6 +677,10 @@
             "interface": {
                 "Ethernet240": "Ethernet0"
             },
+            "serial-console": {
+                "device": "ttyUSB2",
+                "baud-rate": "115200"
+            },
             "rshim_info": "rshim2",
             "bus_info": "0000:01:00.0"
         },
@@ -677,6 +689,10 @@
             "interface": {
                 "Ethernet248": "Ethernet0"
             },
+            "serial-console": {
+                "device": "ttyUSB3",
+                "baud-rate": "115200"
+            },
             "rshim_info": "rshim3",
             "bus_info": "0000:02:00.0"
         }