The Original Lenovo ThinkStation Thunderbolt 3 PCIe Riser Expansion Card 5C50W00870 is a high-quality expansion card designed specifically for Lenovo ThinkCentre and ThinkStation products. It features a PCIe 3.0 x4 interface with 2 ports, compatible with USB-C ports, PCI Express, and DisplayPort. Made in China, this expansion card is a reliable and efficient solution for expanding the capabilities of your computer system. Its compatibility with various Lenovo products makes it a versatile option for enhancing your workstation's performance.