1512, 2019 DK’s Cool eGPU Experience – Part 2: Thunderbolt 3 DK/ December 15, 2019/ eGPU Series What is so special about using Thunderbolt 3 for an eGPU? Thunderbolt 3 (TB3) uses a USB-C connector and supports PCIe x4. The EXP GDC Beast from Part 1 operated at x2 over mini PCIe on the Lenovo ThinkPad T420.Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on LinkedIn (Opens in new window) LinkedIn Click to share on X (Opens in new window) X Click to share on Reddit (Opens in new window) Reddit