# Setting Up Stenoob Pro 3 in DigitalCAT

The Stenoob Pro 3 works with **DigitalCAT** in either **Gemini PR** (default) or **TX Bolt** mode. Both protocols are supported — you just need to select the matching option inside DigitalCAT.

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### 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 are listed, unplug and replug the keyboard. The entry that disappears/reappears is your keyboard.
5. Note the **COM#** — you’ll need this in DigitalCAT.

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### 2. Configure DigitalCAT

1. In DigitalCAT, go to **Translator → Steno Source**.
2. Under **Primary Steno Device**, choose one of the following depending on your keyboard’s mode:
   * **Gemini Realtime** (if your keyboard is in Gemini PR mode — the default)
   * **Baron Realtime** (if your keyboard is toggled into TX Bolt mode)
3. Set **Port 1** to the COM# you verified above.
4. Click **OK** to save.

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### 3. Start Writing

1. Go to **Translator → Start Translation**.
2. Begin writing — your strokes should register in DigitalCAT.

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### Notes

* By default, the Pro 3 starts in **Gemini PR** mode. If you’d like to try **TX Bolt**, see the **Pro 3: Toggle Protocol** page for instructions.
* ⚠️ Only one program can access the COM port at a time. Close other steno software (such as Plover) before connecting to DigitalCAT.


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