diff --git a/doc/devices/SWTG024AS-A-V2.0.1_4C_2SFP.md b/doc/devices/SWTG024AS-A-V2.0.1_4C_2SFP.md
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index 0000000..f1fcc53
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+++ b/doc/devices/SWTG024AS-A-V2.0.1_4C_2SFP.md
@@ -0,0 +1,43 @@
+### SWTG024AS-A-V2.0.1_4C_2SFP
+It is highly similar to SWTG024AS-V2.0, with the only difference being the GPIO configuration for the SFP port.
+
+## Brands
+|Brand|Type|Managed|PCB|Flash|Chip RTL|
+|---|---|---|---|---|---|
+| Horaco | ZX-SG4T2 |  | PCB-SWTG024AS-A-V2.0.1_19650 | P25D40SH | ??? |
+
+### Label specifications
+
+- **Name**: 
+- **Ports**:
+  - 4 × RJ45: 10/100/1000/2500 Mbps
+  - 2 × SFP+: 1000 / 2500 / 10000 Mbps
+
+<img src="photos/SWTG024AS-A-V2_0_1_19650/horaco-zx-sg4t2-label.jpg" width="300" />
+
+### What works
+The device is fully supported:
+- ALL 2.5GBASE-T RJ45 ports work at 10/100/1000/2500 Mbps
+- The SFP+ port supports 1G, 2.5G and 10G modules 
+
+### PCB overview
+
+**Board markings**
+- Top silkscreen: PCB-SWTG024AS-A-V2.0.1_19650
+
+Top side
+
+<img src="photos/SWTG024AS-A-V2_0_1_19650/horaco-zx-sg4t2-pcb-top.jpg" width="300" />
+
+Bottom
+
+<img src="photos/SWTG024AS-A-V2_0_1_19650/horaco-zx-sg4t2-pcb-bottom.jpg" width="300" />
+
+### J1, serial console
+
+| `J1` pin | Signal      |
+| -------- | ----------- |
+| 1        | 3V3         |
+| 2        | GND         |
+| 3        | RX (Input)  |
+| 4        | TX (Output) |
diff --git a/doc/devices/SWTG024AS-A-V2.0.1_5C_1SFP.md b/doc/devices/SWTG024AS-A-V2.0.1_5C_1SFP.md
index ff88127..400a769 100644
--- a/doc/devices/SWTG024AS-A-V2.0.1_5C_1SFP.md
+++ b/doc/devices/SWTG024AS-A-V2.0.1_5C_1SFP.md
@@ -13,7 +13,7 @@ It is highly similar to SWTG024AS-V2.0, with the only difference being the GPIO
   - 5 × RJ45: 10/100/1000/2500 Mbps
   - 1 × SFP+: 1000 / 2500 / 10000 Mbps
 
-<img src="" width="300" />
+<!-- <img src="" width="300" /> -->
 
 ### What works
 The device is fully supported:
@@ -28,11 +28,11 @@ The device is fully supported:
 
 Top side
 
-<img src="" width="300" />
+<!-- <img src="" width="300" /> -->
 
 Bottom
 
-<img src="" width="300" />
+<!-- <img src="" width="300" /> -->
 
 ### J1, serial console
 
diff --git a/doc/devices/photos/SWTG024AS-A-V2_0_1_19650/horaco-zx-sg4t2-label.jpg b/doc/devices/photos/SWTG024AS-A-V2_0_1_19650/horaco-zx-sg4t2-label.jpg
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diff --git a/doc/supported_devices.md b/doc/supported_devices.md
index 9cdf8c0..3563887 100644
--- a/doc/supported_devices.md
+++ b/doc/supported_devices.md
@@ -13,6 +13,7 @@ The following devices have been tested and are fully working:
 | Horaco   | HC-SWTGW218AS   | Yes     | [SWTG018AS-A V2.0](https://github.com/logicog/RTLPlayground/blob/main/doc/devices/SWTG018AS_A_V2_0.md)           |       | 8 + 1 |
 | Horaco   | ZX310S-4T2XH    | Yes     | [PCB-SL310S-4T1T1X-V1.0.1-24107](https://github.com/logicog/RTLPlayground/blob/main/doc/devices/ZX310S-4T2XH.md) | 2M    | 5 + 1 |
 | Horaco   | ZX310S-4T2XT    | Yes     | [PCB-SL310S-4T2XT-V1.0.0-22273](https://github.com/logicog/RTLPlayground/blob/main/doc/devices/ZX310S-4T2XT.md)  | 2M    | 6     |
+| Horaco   | ZX-SG4T2        | No      | [SWTG024AS-A-V2.0.1_19650_4C_2SFP](devices/SWTG024AS-A-V2.0.1_4C_2SFP.md)| 0.5M | 4 + 2|
 | Horaco   | ZX-SWTG124AS 	 | Yes 	   | [SWTG024AS-v2.0](https://github.com/logicog/RTLPlayground/blob/main/doc/devices/SWTG024AS.md) 	                  |       | 4 + 2 |
 | Keeplink | KP-9000-6XH-X2  | No      | [2M-PCB43-V2.1](https://github.com/logicog/RTLPlayground/blob/main/doc/devices/KP-9000-6XH-X2.md)                |       | 4 + 2 |
 | keepLINK | KP-9000-9XHML-X | Yes     | [2M-PCB23-V2.2](https://github.com/logicog/RTLPlayground/blob/main/doc/devices/2M-PCB23-V2_2.md)                 | 2M    | 8 + 1 |