Some issues related to adding items to the cart can be addressed by refreshing the page.
Currently, we only offer direct purchases to customers in the United States through our website. If you are located in other territories, you will be unable to complete checkout.
If you are located in the United States, and are having issues that persist despite the guidance given here, please reach out to us at support@plugable.com or fill out the form on our support page.
When contacting us, screenshots and screen recordings are very helpful for us to investigate the issue. It is also helpful for us to know what browser and platform you're using. For example, Safari on macOS, Firefox on Android, or Chrome on Windows.