ASUS ThunderboltEX 4 - Thunderbolt adapter - PCIe 3.0 x4 - Thunderbolt 4 x 2

ASUS ThunderboltEX 4 is a Thunderbolt 4 add-on card that offers 40 Gbps bi-directional bandwidth, USB4 device compatibility, and a Mini DisplayPort 1.4. It supports up to five Thunderbolt devices in a daisy chain and enables up to 100-watt USB-C charging for laptops.