diff --git a/netbox/dcim/api/serializers.py b/netbox/dcim/api/serializers.py
index 6b285620f..d4e403598 100644
--- a/netbox/dcim/api/serializers.py
+++ b/netbox/dcim/api/serializers.py
@@ -175,6 +175,28 @@ class WritableRackSerializer(serializers.ModelSerializer):
         return data
 
 
+#
+# Rack units
+#
+
+class NestedDeviceSerializer(serializers.ModelSerializer):
+    url = serializers.HyperlinkedIdentityField(view_name='dcim-api:device-detail')
+
+    class Meta:
+        model = Device
+        fields = ['id', 'url', 'name', 'display_name']
+
+
+class RackUnitSerializer(serializers.Serializer):
+    """
+    A rack unit is an abstraction formed by the set (rack, position, face); it does not exist as a row in the database.
+    """
+    id = serializers.IntegerField(read_only=True)
+    name = serializers.CharField(read_only=True)
+    face = serializers.IntegerField(read_only=True)
+    device = NestedDeviceSerializer(read_only=True)
+
+
 #
 # Rack reservations
 #
@@ -454,14 +476,6 @@ class DeviceSerializer(CustomFieldModelSerializer):
         }
 
 
-class NestedDeviceSerializer(serializers.ModelSerializer):
-    url = serializers.HyperlinkedIdentityField(view_name='dcim-api:device-detail')
-
-    class Meta:
-        model = Device
-        fields = ['id', 'url', 'name', 'display_name']
-
-
 class WritableDeviceSerializer(serializers.ModelSerializer):
 
     class Meta:
diff --git a/netbox/dcim/api/views.py b/netbox/dcim/api/views.py
index 0e1923ce6..ac4c4cb56 100644
--- a/netbox/dcim/api/views.py
+++ b/netbox/dcim/api/views.py
@@ -96,15 +96,10 @@ class RackViewSet(WritableSerializerMixin, CustomFieldModelViewSet):
                 exclude_pk = None
         elevation = rack.get_rack_units(face, exclude_pk)
 
-        # Serialize Devices within the rack elevation
-        for u in elevation:
-            if u['device']:
-                u['device'] = serializers.NestedDeviceSerializer(
-                    instance=u['device'],
-                    context={'request': request},
-                ).data
-
-        return Response(elevation)
+        page = self.paginate_queryset(elevation)
+        if page is not None:
+            rack_units = serializers.RackUnitSerializer(page, many=True, context={'request': request})
+            return self.get_paginated_response(rack_units.data)
 
 
 #