When driver installation is complete, disconnect cable from computer. It does not emulate a COM port. Basically need to launch VCDS software via extra file: Acts as a “dongle”. The USB standards do not allow for passive extension cords! This is going to require that you are at least somewhat familiar with navigating around Windows.

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USB connector plugs into most modern laptops! This can save you the ot and headache of having to buy and use a second cable.

Ross-Tech: KEY-USB Interface

This article was not helpful. The driver will show up in the list, and you’ll just interfaxe it and go. The USB standards do not allow for passive extension cords! Unzip the contents of the download into a new folder. OBD-II connector made to our own specifications. If you’ve installed the VCP drivers before installation is pretty easy and I’m not sure why you’re reading this.

This article was helpful. In that case, you want to click Have Disk Home Contact Support Knowledgebase Downloads.

Ross-Tech Ross-Tech HEX or KEY USB Interface – two ways of downloading and installing the driver

Be sure to accept anything about installing the driver, assuming you downloaded them right from Ross-Tech as directed. It should look like this: Select this, then click next.


Right click and select Update Driver Software We only sell them ross tech hex or key usb interface our VCDS software. The cable on this interface is about 6 feet long — just right for most laptops.

That means this interface will not work with any other software besides VCDS. We do not sell any interfaces as a “Stand-Alone” products. Instead, you want to pick the driver from your computer. First, download the drivers from Ross-Tech. Uninstall any other VCDS versions, if present on computer.

Many Audis and VW’s have the “2×2” data link connector, click here for more info. Find the folder and if it isn’t auto-selected for you, pick the ftdibus. This is going to require that you are at least somewhat familiar with navigating around Windows.

However, anyone thinking about using them needs to be aware of the following points: We do not offer installation support for these drivers. You’ll need to plug your Ross-Tech cable in for the rest, but you don’t have to be at your car to ross tech hex or key usb interface this, so you can do so pretty much anywhere if you want.


It should show “Port Status: Make sure to tick ON “Install bit”. Early in their development, we found a number of technical advantages to ross tech hex or key usb interface a “direct” USB driver which bypasses the Windows Serial drivers entirely.

However, product support is provided only to the original purchaser. Of course, the same would apply with a serial interface as well. Read golden rule above?

Depending on what drivers your system already has installed, you may have to “force” these by telling the wizard not to search, but to let you specify what driver to install, then doing the Have Disk and Browse thing.

Odds are, if you’re reading this, you haven’t installed the VCP driver before. If you want, you are ready to use the cable with your application now, just remember the port number associated with the item.