diff --git a/device-types/Dell/PowerEdge-R420.yaml b/device-types/Dell/PowerEdge-R420.yaml
index ded6bd4b14..e2ba92b46f 100644
--- a/device-types/Dell/PowerEdge-R420.yaml
+++ b/device-types/Dell/PowerEdge-R420.yaml
@@ -24,3 +24,12 @@ interfaces:
   - name: iDRAC
     type: 1000base-t
     mgmt_only: true
+module-bays:
+  - name: Riser PCIe slot 1
+    position: PCIe-1
+    label: '1'
+    description: PCIe2/3 4/16x
+  - name: Riser PCIe slot 2
+    position: PCIe-2
+    label: '2'
+    description: PCIe2/3 16x
diff --git a/device-types/Dell/PowerEdge-R530.yml b/device-types/Dell/PowerEdge-R530.yml
index 9ffc4d9439..e893b2c78b 100644
--- a/device-types/Dell/PowerEdge-R530.yml
+++ b/device-types/Dell/PowerEdge-R530.yml
@@ -29,3 +29,24 @@ interfaces:
   - name: iDRAC
     type: 1000base-t
     mgmt_only: true
+module-bays:
+  - name: PCIe slot 1
+    position: PCIe-1
+    label: '1'
+    description: PCIe2/3 8x
+  - name: PCIe slot 2
+    position: PCIe-2
+    label: '2'
+    description: PCIe2/3 16x
+  - name: PCIe slot 3
+    position: PCIe-3
+    label: '3'
+    description: PCIe2/3 16x
+  - name: PCIe slot 4
+    position: PCIe-4
+    label: '4'
+    description: PCIe2/3 1x
+  - name: PCIe slot 5
+    position: PCIe-5
+    label: '5'
+    description: PCIe2/3 4x