diff --git a/device-types/Treetech/SDG.yaml b/device-types/Treetech/SDG.yaml
new file mode 100644
index 0000000000..b9084ca4b8
--- /dev/null
+++ b/device-types/Treetech/SDG.yaml
@@ -0,0 +1,15 @@
+---
+manufacturer: Treetech
+model: SDG
+slug: treetech-sdg
+u_height: 1
+is_full_depth: false
+is_powered: true
+airflow: passive
+comments: Fully aggregate information from any equipment compatible with Modbus and/or DNP3 protocols and redistribute it in a highly customizable way in
+  these protocols and even in those of the IEC 61850 standard.
+power-ports:
+  - name: power
+    type: hardwired
+    description: 85-265 Vac/Vdc, 50/60 Hz
+    maximum_draw: 12
diff --git a/module-types/Treetech/SDG-network-FOFO.yml b/module-types/Treetech/SDG-network-FOFO.yml
new file mode 100644
index 0000000000..da36f0a362
--- /dev/null
+++ b/module-types/Treetech/SDG-network-FOFO.yml
@@ -0,0 +1,9 @@
+---
+manufacturer: Treetech
+model: SDG-network-FOFO
+description: 2 Ethernet Fiber Optic (10/100BASE-FX; MM 1310nm SC connector)
+interfaces:
+  - name: Eth01
+    type: 100base-fx
+  - name: Eth02
+    type: 100base-fx
diff --git a/module-types/Treetech/SDG-network-FOSR.yml b/module-types/Treetech/SDG-network-FOSR.yml
new file mode 100644
index 0000000000..bcc81109f9
--- /dev/null
+++ b/module-types/Treetech/SDG-network-FOSR.yml
@@ -0,0 +1,9 @@
+---
+manufacturer: Treetech
+model: SDG-network-FOSR
+description: 1 Ethernet Fiber Optic (10/100BASE-FX; MM 1310nm SC connector) + 1 Serial Fiber Optic (MM 850nm SC connector)
+interfaces:
+  - name: Eth01
+    type: 100base-fx
+  - name: Eth02
+    type: 100base-lfx
diff --git a/module-types/Treetech/SDG-network-RJ45.yml b/module-types/Treetech/SDG-network-RJ45.yml
new file mode 100644
index 0000000000..de0c5c8d70
--- /dev/null
+++ b/module-types/Treetech/SDG-network-RJ45.yml
@@ -0,0 +1,9 @@
+---
+manufacturer: Treetech
+model: SDG-network-RJ45
+description: 2 Ethernet RJ45 (10/100BASE-T)
+interfaces:
+  - name: Eth01
+    type: 100base-tx
+  - name: Eth02
+    type: 100base-tx