In many cases, drivers supplied with these interfaces are not digitally signed by Microsoft. On 64-bit Windows, "Driver Signature Enforcement" prevents the installation of unsigned drivers. This is the most common point of failure.
The VAG 908 USB driver 64-bit is a software component designed to facilitate communication between a computer running a 64-bit operating system and a VAG 908 device, which is a popular diagnostic tool used in the automotive industry. This driver is essential for ensuring seamless connectivity and data exchange between the device and the computer, enabling users to perform various diagnostic and repair tasks on vehicles.
You need to download the official Ross-Tech USB drivers that support Virtual COM Ports (VCP). Visit the Ross-Tech Virtual COM Port Drivers page . Download the VCP Drivers (USB-to-Serial). 2. Prepare the Driver Files
: The most reliable way to get the latest 64-bit drivers is to download the current version of VCDS directly from the Ross-Tech Download Page vag 908 usb driver 64 bit
: If using a third-party cable (e.g., from eBay or Amazon), use the drivers provided on the included CD or from the vendor. 2. Install the Driver Manually
The is a fundamental software requirement for automotive hobbyists and professional mechanics working with Volkswagen, Audi, SEAT, and Škoda (VAG Group) vehicles . If you own a legacy VAG 908 diagnostic cable—often used alongside older iterations of Ross-Tech’s VCDS (VAG-COM Diagnostic System) software—getting the computer to communicate with the vehicle's OBD-II port can be a challenge.
If your 908 interface is a "third-party" or "clone" cable, the official Ross-Tech drivers might not work. In many cases, drivers supplied with these interfaces
Modern 64-bit Windows systems (Windows 10 and Windows 11) often fail to automatically recognize the VAG 908 interface because it is legacy hardware or a clone device. The operating system attempts to assign a generic driver, which prevents the diagnostic software from communicating with the vehicle.
as a "USB Serial Port." Note the COM number (e.g., COM 3). If needed, you can change this in the port's Advanced Properties
If you need further assistance or want to download the VAG 908 USB driver 64-bit, you can try the following resources: The VAG 908 USB driver 64-bit is a
The is a software component required to connect a VAG 908 diagnostic cable to a Windows PC running a 64-bit operating system. This driver acts as a bridge, emulating a serial COM port to allow communication between your vehicle's ECU and diagnostic software like VAG-COM. Key Features & Functions
Look under the or Ports (COM & LPT) sections. You will likely see an unrecognized device—often named "VAG-COM USB" or "Ross-Tech HEX-USB"—flagged with a yellow exclamation mark. Right-click the device and select Update driver . Choose Browse my computer for drivers .
, and point it to the installation folder of your VCDS software (usually C:\Ross-Tech\VCDS Configure the Software Connect the cable to your car and turn the ignition Open your software, go to , select the correct port, and click to confirm the interface is found. 💡 Troubleshooting Tips Firmware Updates
With the correct driver in place, your VAG 908 cable will give you years of reliable service scanning fault codes, checking measuring blocks, and performing output tests on VAG vehicles.
: Select "Browse my computer for driver software," then choose "Let me pick from a list of device drivers on my computer".