Thunderbolt 3 graphics card docks Adam Patrick Murray/IDGĪ Razer Core connected to a Razer Blade Stealth laptop via Thunderbolt 3/USB-C. First, let’s tackle the modern approach of using a graphics card dock via Thunderbolt 3. We’ll walk you through the DIY process for configuring an external graphics card later in this article, along with the sudden rise of streaming PC games from the cloud.