Add barebones docs for already supported Horaco ZX-SG4T2 / WTG024AS-A-V2.0.1_4C_2SFP

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) |

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