diff --git a/sonic_platform_base/sonic_xcvr/api/public/cmis.py b/sonic_platform_base/sonic_xcvr/api/public/cmis.py
index 78b2de9..48ac88f 100644
--- a/sonic_platform_base/sonic_xcvr/api/public/cmis.py
+++ b/sonic_platform_base/sonic_xcvr/api/public/cmis.py
@@ -165,8 +165,8 @@ def _update_vdm_dict(self, dict_to_update, new_key, vdm_raw_dict, vdm_observable
     def freeze_vdm_stats(self):
         '''
         This function freeze all the vdm statistics reporting registers.
-        When raised by the host, causes the module to freeze and hold all 
-        reported statistics reporting registers (minimum, maximum and 
+        When raised by the host, causes the module to freeze and hold all
+        reported statistics reporting registers (minimum, maximum and
         average values)in Pages 24h-27h.
 
         Returns True if the provision succeeds and False incase of failure.
@@ -184,9 +184,9 @@ def get_vdm_freeze_status(self):
     def unfreeze_vdm_stats(self):
         '''
         This function unfreeze all the vdm statistics reporting registers.
-        When freeze is ceased by the host, releases the freeze request, allowing the 
+        When freeze is ceased by the host, releases the freeze request, allowing the
         reported minimum, maximum and average values to update again.
-        
+
         Returns True if the provision succeeds and False incase of failure.
         '''
         return self.xcvr_eeprom.write(consts.VDM_CONTROL, VDM_UNFREEZE)
@@ -378,7 +378,7 @@ def get_transceiver_info_firmware_versions(self):
             ( _, _, _, _, _, _, _, _, ActiveFirmware, InactiveFirmware) = result['result']
         except (ValueError, TypeError):
             return return_dict
-        
+
         return_dict["active_firmware"] = ActiveFirmware
         return_dict["inactive_firmware"] = InactiveFirmware
         return return_dict
@@ -589,6 +589,13 @@ def get_voltage(self):
             return None
         return float("{:.3f}".format(voltage))
 
+    def is_copper(self):
+        '''
+        Returns True if the module is copper, False otherwise
+        '''
+        media_intf = self.get_module_media_type()
+        return media_intf == "passive_copper_media_interface" if media_intf else None
+
     @read_only_cached_api_return
     def is_flat_memory(self):
         return self.xcvr_eeprom.read(consts.FLAT_MEM_FIELD) is not False
@@ -1068,10 +1075,10 @@ def get_media_lane_count(self, appl=1):
         '''
         if self.is_flat_memory():
             return 0
-        
+
         if (appl <= 0):
             return 0
-        
+
         appl_advt = self.get_application_advertisement()
         return appl_advt[appl]['media_lane_count'] if len(appl_advt) >= appl else 0
 
@@ -1104,10 +1111,10 @@ def get_media_lane_assignment_option(self, appl=1):
         '''
         if self.is_flat_memory():
             return 'N/A'
-        
+
         if (appl <= 0):
             return 0
-        
+
         appl_advt = self.get_application_advertisement()
         return appl_advt[appl]['media_lane_assignment_options'] if len(appl_advt) >= appl else 0
 
@@ -2348,7 +2355,7 @@ def get_transceiver_vdm_real_value(self):
         biasyq{lane_num}                               = FLOAT                  ; modulator bias yq in percentage
         biasyp{lane_num}                               = FLOAT                  ; modulator bias yq in percentage
         cdshort{lane_num}                              = FLOAT                  ; chromatic dispersion, high granularity, short link in ps/nm
-        cdlong{lane_num}                               = FLOAT                  ; chromatic dispersion, high granularity, long link in ps/nm  
+        cdlong{lane_num}                               = FLOAT                  ; chromatic dispersion, high granularity, long link in ps/nm
         dgd{lane_num}                                  = FLOAT                  ; differential group delay in ps
         sopmd{lane_num}                                = FLOAT                  ; second order polarization mode dispersion in ps^2
         soproc{lane_num}                               = FLOAT                  ; state of polarization rate of change in krad/s
@@ -2377,7 +2384,7 @@ def get_transceiver_vdm_thresholds(self):
         Returns:
             A dict containing the following keys/values :
         ========================================================================
-        xxx refers to HALARM/LALARM/HWARN/LWARN threshold 
+        xxx refers to HALARM/LALARM/HWARN/LWARN threshold
         ;Defines Transceiver VDM high/low alarm/warning threshold for a port
         key                                            = TRANSCEIVER_VDM_XXX_THRESHOLD|ifname    ; information module VDM high/low alarm/warning threshold on port
         ; field                                        = value
@@ -2700,7 +2707,7 @@ def decommission_all_datapaths(self):
             name = "DP{}State".format(lane + 1)
             if dp_state[name] != 'DataPathDeactivated':
                 return False
-            
+
             name = "ConfigStatusLane{}".format(lane + 1)
             if config_state[name] != 'ConfigSuccess':
                 return False
diff --git a/tests/sonic_xcvr/test_cmis.py b/tests/sonic_xcvr/test_cmis.py
index 5c987bd..ccc1e0e 100644
--- a/tests/sonic_xcvr/test_cmis.py
+++ b/tests/sonic_xcvr/test_cmis.py
@@ -188,6 +188,19 @@ def test_get_voltage(self, mock_response, expected):
         result = self.api.get_voltage()
         assert result == expected
 
+    def test_is_copper(self):
+      with patch.object(self.api, 'xcvr_eeprom') as mock_eeprom:
+         mock_eeprom.read = MagicMock()
+         mock_eeprom.read.return_value = None
+         assert self.api.is_copper() is None
+         self.api.get_module_media_type = MagicMock()
+         self.api.get_module_media_type.return_value = "passive_copper_media_interface"
+         assert self.api.is_copper()
+         self.api.get_module_media_type.return_value = "active_cable_media_interface"
+         assert not self.api.is_copper()
+         self.api.get_module_media_type.return_value = "sm_media_interface"
+         assert not self.api.is_copper()
+
     @pytest.mark.parametrize("mock_response, expected", [
         (False, False)
     ])