diff --git a/device-types/Corning/EDGE-01U.yaml b/device-types/Corning/EDGE-01U.yaml
index 9ac00a4151..73cea29a20 100644
--- a/device-types/Corning/EDGE-01U.yaml
+++ b/device-types/Corning/EDGE-01U.yaml
@@ -25,3 +25,11 @@ module-bays:
     position: 02C
   - name: 02D
     position: 02D
+  - name: 03A
+    position: 03A
+  - name: 03B
+    position: 03B
+  - name: 03C
+    position: 03C
+  - name: 03D
+    position: 03D