The ASUS ThunderboltEX 4 Intel Thunderbolt 4 JHL 8540 Controller is an expansion card that adds 4 USB Type-C ports to your computer. Made by ASUS, this product is designed to enhance your system's connectivity options. With its sleek design and reliable performance, this expansion card is a great addition to any computer setup. As it is based on Intel Thunderbolt 4 technology, you can expect fast and efficient data transfer speeds. Upgrade your computer with the ASUS ThunderboltEX 4 for improved connectivity and functionality.