EASY-USB-CAB (COM3) Driver

The EASY-USB-CAB (COM3) driver helps Windows recognize Eaton’s USB programming cable and provides the communication interface needed by compatible Eaton software. It is intended for users connecting supported Eaton equipment to a PC for setup, programming, or maintenance, particularly when the cable appears as an unknown device or its COM port is unavailable.

Key Features

• USB communication support: Enables compatible Eaton applications to communicate with connected equipment through the EASY-USB-CAB cable.
• COM port access: Makes the cable available as a serial communication port. Although this device is listed as COM3, Windows may assign a different port number on your computer.
• Legacy Windows support: Listed operating systems include Windows 10, 8.1, 7, Vista, and XP. Select a package that matches your Windows version and system architecture.
• Device recognition: Installing the appropriate driver can resolve recognition problems caused by a missing or incorrectly installed driver.

How to Install EASY-USB-CAB (COM3) Driver

1. Check your system details. Confirm your Windows edition and whether it is 32-bit or 64-bit. For Windows 10/11 systems, note that Windows 10 is listed as supported; Windows 11 compatibility should be verified separately with Eaton.
2. Choose the correct package. Before starting your EASY-USB-CAB (COM3) driver download for Windows, check that the package explicitly supports this cable and your operating system. If choosing a free download, verify its source and avoid unrelated installer utilities.
3. Install the driver. Extract the downloaded archive if necessary, then run the supplied installer and follow its instructions, including any guidance about when to connect the USB cable.
4. Verify device recognition. Open Device Manager and check for the cable under Ports (COM & LPT) or the relevant USB device category. If Windows requests a driver, use Update driver and browse to the extracted driver folder.
5. Configure your Eaton software. Select the COM port shown in Device Manager, then test communication with compatible equipment. Do not assume the assigned port will always be COM3.

Keep the driver updated when Eaton provides a suitable release or recommends an update to address a specific issue. Before installing the latest version, confirm that it still supports your operating system and equipment, especially on older Windows installations. A working setup does not necessarily need replacing simply because another package is available.