# Setting Up Stenoob Pro 3 in Case CATalyst

⚠️ **Important:** Case CATalyst requires the keyboard to be in **TX Bolt** mode.

* By default, the Pro 3 starts in Gemini PR mode.
* If you haven’t switched yet, follow the steps on the [**Pro 3: Toggle Protocol** ](/pro-3-toggle-protocol.md)page to change to TX Bolt before continuing.

***

### 1. Verify the COM Port

1. Press **Windows + X** and select **Device Manager**.
2. Expand **Ports (COM & LPT)**.
3. Look for **USB Serial Device (COM#)**.
4. If multiple ports appear, unplug/replug the keyboard to see which one disappears and reappears.
5. Note the **COM#** — you’ll use this in Case CATalyst.

***

### 2. Configure Read Setup

1. In Case CATalyst, go to **Tools → All Options → Read/Manage Notes**.
2. In the **Read Setup** dialog:
   * **Device:** Select **Baron TX**.
   * **Port:** Choose the COM# you verified above.

***

### 3. Configure Translate Setup

1. Go to **Translate → Options → Realtime (tab)**.
2. Under **Writer**, select **Baron TX**.
3. Under **COM Port**, enter the same COM#.
4. Click **Apply**, then **OK**.

***

### 4. Test the Connection

* Try reading or connecting to the keyboard.
* If everything is set correctly, strokes should register in Case CATalyst.

⚠️ **Note:** If you also use your Pro 3 with Plover, remember that only **one application can access the COM port at a time**. Close Plover before connecting to Case CATalyst.


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