diff --git a/device/mellanox/x86_64-mlnx_msn2700-r0/psu_sensors.json b/device/mellanox/x86_64-mlnx_msn2700-r0/psu_sensors.json
index 73f011e29d71..abd2e8a183f1 100644
--- a/device/mellanox/x86_64-mlnx_msn2700-r0/psu_sensors.json
+++ b/device/mellanox/x86_64-mlnx_msn2700-r0/psu_sensors.json
@@ -219,8 +219,8 @@
                     "i2c-1-mux (chan_id 3)"
                 ],
                 "chip": {
-                    "dps460-i2c-*-58": ["1", "L"],
-                    "dps460-i2c-*-59": ["2", "R"]
+                    "dps460-i2c-*-58": ["2", "R"],
+                    "dps460-i2c-*-59": ["1", "L"]
                 }
             },
             "a1": {
@@ -229,8 +229,8 @@
                     "i2c-1-mux (chan_id 3)"
                 ],
                 "chip": {
-                    "dps460-i2c-*-58": ["1", "L"],
-                    "dps460-i2c-*-59": ["2", "R"]
+                    "dps460-i2c-*-58": ["2", "R"],
+                    "dps460-i2c-*-59": ["1", "L"]
                 }                
             }
         },
@@ -376,8 +376,21 @@
                 "curr2 PSU 12V Rail Curr (out)"
             ]
         },
-        "MTEF-AC-I": {
+        "MTEF-AC-G-DELTA":{
 
+        },
+        "MTEF-AC-I": {
+            "label": [
+                "in1 PSU 220V Rail (in)",
+                "in2 PSU 12V Rail (out)",
+                "fan1 PSU Fan 1",
+                "temp1 PSU Temp 1",
+                "temp2 PSU Temp 2",
+                "power1 PSU 220V Rail Pwr (in)",
+                "power2 PSU 12V Rail Pwr (out)",
+                "curr1 PSU 220V Rail Curr (in)",
+                "curr2 PSU 12V Rail Curr (out)"
+            ]
         },
         "MTEF-AC-M": {
             "label": [
diff --git a/device/mellanox/x86_64-mlnx_msn4700-r0/sensors.conf b/device/mellanox/x86_64-mlnx_msn4700-r0/sensors.conf
index 280118e43ef1..6b6205cc5493 100644
--- a/device/mellanox/x86_64-mlnx_msn4700-r0/sensors.conf
+++ b/device/mellanox/x86_64-mlnx_msn4700-r0/sensors.conf
@@ -188,18 +188,6 @@ bus "i2c-15" "i2c-1-mux (chan_id 6)"
 # Power supplies
 bus "i2c-4" "i2c-1-mux (chan_id 3)"
     chip "dps460-i2c-*-58"
-        label in1 "PSU-1(L) 220V Rail (in)"
-        ignore in2
-        label in3 "PSU-1(L) 12V Rail (out)"
-        label fan1 "PSU-1(L) Fan 1"
-        label temp1 "PSU-1(L) Temp 1"
-        label temp2 "PSU-1(L) Temp 2"
-        label temp3 "PSU-1(L) Temp 3"
-        label power1 "PSU-1(L) 220V Rail Pwr (in)"
-        label power2 "PSU-1(L) 12V Rail Pwr (out)"
-        label curr1 "PSU-1(L) 220V Rail Curr (in)"
-        label curr2 "PSU-1(L) 12V Rail Curr (out)"
-    chip "dps460-i2c-*-59"
         label in1 "PSU-2(R) 220V Rail (in)"
         ignore in2
         label in3 "PSU-2(R) 12V Rail (out)"
@@ -211,6 +199,18 @@ bus "i2c-4" "i2c-1-mux (chan_id 3)"
         label power2 "PSU-2(R) 12V Rail Pwr (out)"
         label curr1 "PSU-2(R) 220V Rail Curr (in)"
         label curr2 "PSU-2(R) 12V Rail Curr (out)"
+    chip "dps460-i2c-*-59"
+        label in1 "PSU-1(L) 220V Rail (in)"
+        ignore in2
+        label in3 "PSU-1(L) 12V Rail (out)"
+        label fan1 "PSU-1(L) Fan 1"
+        label temp1 "PSU-1(L) Temp 1"
+        label temp2 "PSU-1(L) Temp 2"
+        label temp3 "PSU-1(L) Temp 3"
+        label power1 "PSU-1(L) 220V Rail Pwr (in)"
+        label power2 "PSU-1(L) 12V Rail Pwr (out)"
+        label curr1 "PSU-1(L) 220V Rail Curr (in)"
+        label curr2 "PSU-1(L) 12V Rail Curr (out)"
 
 # Chassis fans
 chip "mlxreg_fan-isa-*"
diff --git a/device/mellanox/x86_64-mlnx_msn4700-r0/sensors.conf.a1 b/device/mellanox/x86_64-mlnx_msn4700-r0/sensors.conf.a1
index e85dca5aecba..af5b9c33cd4f 100644
--- a/device/mellanox/x86_64-mlnx_msn4700-r0/sensors.conf.a1
+++ b/device/mellanox/x86_64-mlnx_msn4700-r0/sensors.conf.a1
@@ -133,18 +133,6 @@ bus "i2c-15" "i2c-1-mux (chan_id 6)"
 # Power supplies
 bus "i2c-4" "i2c-1-mux (chan_id 3)"
     chip "dps460-i2c-*-58"
-        label in1 "PSU-1(L) 220V Rail (in)"
-        ignore in2
-        label in3 "PSU-1(L) 12V Rail (out)"
-        label fan1 "PSU-1(L) Fan 1"
-        label temp1 "PSU-1(L) Temp 1"
-        label temp2 "PSU-1(L) Temp 2"
-        label temp3 "PSU-1(L) Temp 3"
-        label power1 "PSU-1(L) 220V Rail Pwr (in)"
-        label power2 "PSU-1(L) 12V Rail Pwr (out)"
-        label curr1 "PSU-1(L) 220V Rail Curr (in)"
-        label curr2 "PSU-1(L) 12V Rail Curr (out)"
-    chip "dps460-i2c-*-59"
         label in1 "PSU-2(R) 220V Rail (in)"
         ignore in2
         label in3 "PSU-2(R) 12V Rail (out)"
@@ -156,6 +144,19 @@ bus "i2c-4" "i2c-1-mux (chan_id 3)"
         label power2 "PSU-2(R) 12V Rail Pwr (out)"
         label curr1 "PSU-2(R) 220V Rail Curr (in)"
         label curr2 "PSU-2(R) 12V Rail Curr (out)"
+    chip "dps460-i2c-*-59"
+        label in1 "PSU-1(L) 220V Rail (in)"
+        ignore in2
+        label in3 "PSU-1(L) 12V Rail (out)"
+        label fan1 "PSU-1(L) Fan 1"
+        label temp1 "PSU-1(L) Temp 1"
+        label temp2 "PSU-1(L) Temp 2"
+        label temp3 "PSU-1(L) Temp 3"
+        label power1 "PSU-1(L) 220V Rail Pwr (in)"
+        label power2 "PSU-1(L) 12V Rail Pwr (out)"
+        label curr1 "PSU-1(L) 220V Rail Curr (in)"
+        label curr2 "PSU-1(L) 12V Rail Curr (out)"
+
 
 # Chassis fans
 chip "mlxreg_fan-isa-*"