### 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     | No    | PCB-SWTG024AS-A-V2.0.1_19650 | 512K (P25D40SH)| 8372N  |
| Horaco  | HC-SWTG124AS | Yes   | PCB-SWTG024AS-A-V2.0.1_19650 | 2M   (W25Q16JV)| 8372N  |
| GoodTop | GT-ST024M    | Yes   | PCB-SWTG024AS-A-V2.0.1       | 2M             | 8372N  |

### 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" />

On Horaco HC-SWTG124AS with board PCB-SWTG024AS-A-V2.0.1_19650 the reset button is soldered at `SW1` (on the top left, GPIO48).

### J1, serial console

| `J1` pin | Signal      |
| -------- | ----------- |
| 1        | 3V3         |
| 2        | GND         |
| 3        | RX (Input)  |
| 4        | TX (Output) |