diff --git a/netbox/dcim/graphql/gfk_mixins.py b/netbox/dcim/graphql/gfk_mixins.py
new file mode 100644
index 000000000..e8cb62ad2
--- /dev/null
+++ b/netbox/dcim/graphql/gfk_mixins.py
@@ -0,0 +1,133 @@
+import graphene
+from circuits.graphql.types import CircuitTerminationType
+from circuits.models import CircuitTermination
+from dcim.graphql.types import (
+    ConsolePortTemplateType,
+    ConsolePortType,
+    ConsoleServerPortTemplateType,
+    ConsoleServerPortType,
+    FrontPortTemplateType,
+    FrontPortType,
+    InterfaceTemplateType,
+    InterfaceType,
+    PowerFeedType,
+    PowerOutletTemplateType,
+    PowerOutletType,
+    PowerPortTemplateType,
+    PowerPortType,
+    RearPortTemplateType,
+    RearPortType,
+)
+from dcim.models import (
+    ConsolePort,
+    ConsolePortTemplate,
+    ConsoleServerPort,
+    ConsoleServerPortTemplate,
+    FrontPort,
+    FrontPortTemplate,
+    Interface,
+    InterfaceTemplate,
+    PowerFeed,
+    PowerOutlet,
+    PowerOutletTemplate,
+    PowerPort,
+    PowerPortTemplate,
+    RearPort,
+    RearPortTemplate,
+)
+
+
+class CableTerminationTerminationType(graphene.Union):
+    class Meta:
+        types = (
+            CircuitTerminationType,
+            ConsolePortType,
+            ConsoleServerPortType,
+            FrontPortType,
+            InterfaceType,
+            PowerFeedType,
+            PowerOutletType,
+            PowerPortType,
+            RearPortType,
+        )
+
+    @classmethod
+    def resolve_type(cls, instance, info):
+        if type(instance) == CircuitTermination:
+            return CircuitTerminationType
+        if type(instance) == ConsolePortType:
+            return ConsolePortType
+        if type(instance) == ConsoleServerPort:
+            return ConsoleServerPortType
+        if type(instance) == FrontPort:
+            return FrontPortType
+        if type(instance) == Interface:
+            return InterfaceType
+        if type(instance) == PowerFeed:
+            return PowerFeedType
+        if type(instance) == PowerOutlet:
+            return PowerOutletType
+        if type(instance) == PowerPort:
+            return PowerPortType
+        if type(instance) == RearPort:
+            return RearPortType
+
+
+class InventoryItemTemplateComponentType(graphene.Union):
+    class Meta:
+        types = (
+            ConsolePortTemplateType,
+            ConsoleServerPortTemplateType,
+            FrontPortTemplateType,
+            InterfaceTemplateType,
+            PowerOutletTemplateType,
+            PowerPortTemplateType,
+            RearPortTemplateType,
+        )
+
+    @classmethod
+    def resolve_type(cls, instance, info):
+        if type(instance) == ConsolePortTemplate:
+            return ConsolePortTemplateType
+        if type(instance) == ConsoleServerPortTemplate:
+            return ConsoleServerPortTemplateType
+        if type(instance) == FrontPortTemplate:
+            return FrontPortTemplateType
+        if type(instance) == InterfaceTemplate:
+            return InterfaceTemplateType
+        if type(instance) == PowerOutletTemplate:
+            return PowerOutletTemplateType
+        if type(instance) == PowerPortTemplate:
+            return PowerPortTemplateType
+        if type(instance) == RearPortTemplate:
+            return RearPortTemplateType
+
+
+class InventoryItemComponentType(graphene.Union):
+    class Meta:
+        types = (
+            ConsolePortType,
+            ConsoleServerPortType,
+            FrontPortType,
+            InterfaceType,
+            PowerOutletType,
+            PowerPortType,
+            RearPortType,
+        )
+
+    @classmethod
+    def resolve_type(cls, instance, info):
+        if type(instance) == ConsolePort:
+            return ConsolePortType
+        if type(instance) == ConsoleServerPort:
+            return ConsoleServerPortType
+        if type(instance) == FrontPort:
+            return FrontPortType
+        if type(instance) == Interface:
+            return InterfaceType
+        if type(instance) == PowerOutlet:
+            return PowerOutletType
+        if type(instance) == PowerPort:
+            return PowerPortType
+        if type(instance) == RearPort:
+            return RearPortType