Amazon.com: ASUS ThunderboltEX 3-TR Expansion Card for Z490 (Intel 10th Gen CPUs)motherboard (PCIe 3.0 x4 interface, 2 x Thunderbolt™ 3 USB Type-C® ports with 100w USB quick charge, 2 x mini DisplayPort
Amazon.com: StarTech.com Thunderbolt 3 PCIe Expansion Chassis, External Enclosure With One PCI Express Slot, PCIe Box for Laptops / Desktops / All-In-Ones, 5K/4K Output Via TB3/DP, TAA Compliant (TB31PCIEX16) : Electronics