diff --git a/sonic_platform_base/sonic_xcvr/api/public/cmis.py b/sonic_platform_base/sonic_xcvr/api/public/cmis.py
index c7fd1c4f2..f80637c80 100644
--- a/sonic_platform_base/sonic_xcvr/api/public/cmis.py
+++ b/sonic_platform_base/sonic_xcvr/api/public/cmis.py
@@ -367,6 +367,13 @@ 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_interface()
+        return media_intf == "passive_copper_media_interface" or media_intf == "active_cable_media_interface"
+
     def is_flat_memory(self):
         return self.xcvr_eeprom.read(consts.FLAT_MEM_FIELD) is not False