diff --git a/device-types/Cisco/ESA-C390.yaml b/device-types/Cisco/ESA-C390.yaml
new file mode 100644
index 000000000..4dc9c5e9b
--- /dev/null
+++ b/device-types/Cisco/ESA-C390.yaml
@@ -0,0 +1,32 @@
+---
+manufacturer: Cisco
+model: ESA C390
+slug: cisco-esa-c390
+part_number: ESA-C390-K9
+u_height: 1
+is_full_depth: true
+airflow: front-to-rear
+console-ports:
+  - name: Console
+    type: rj-45
+  - name: RPC
+    type: rj-45
+interfaces:
+  - name: Management
+    type: 1000base-t
+    mgmt_only: true
+  - name: Data 1
+    type: 1000base-t
+  - name: Data 2
+    type: 1000base-t
+  - name: Data 3
+    type: 1000base-t
+  - name: Data 4
+    type: 1000base-t
+  - name: Data 5
+    type: 1000base-t
+module-bays:
+  - name: PSU1
+    position: '1'
+  - name: PSU2
+    position: '2'
diff --git a/module-types/Cisco/CCS-PWR-AC-770W.yaml b/module-types/Cisco/CCS-PWR-AC-770W.yaml
new file mode 100644
index 000000000..e53d4f9c0
--- /dev/null
+++ b/module-types/Cisco/CCS-PWR-AC-770W.yaml
@@ -0,0 +1,8 @@
+---
+manufacturer: Cisco
+model: CCS-PWR-AC-770W
+part_number: CCS-PWR-AC-770W
+comments: 770W AC power supply for Cisco x90-Series
+power-ports:
+  - name: PSU{module}
+    type: iec-60320-c14