ASUS USB4 PCIe Gen4 Card, dual USB4® ports (USB-C®) ports, DisplayPort™ 1.4, PCIe® 4.0 x4 interfaceExperience Blistering Speeds and Multi-Way ConnectivityASUS USB4 PCIe Gen4 Card is an USB4® add-on card that offers 40 Gbps bi-directional bandwidth, design for USB4® device compatibility, including the future arrival of faster USB4® drives, guaranteed for two external 4K monitors and provide dual 20V/3A 60W Quick charge features. Speeding USB4® Port SupportOne Cable, Multiple DevicesSimplify your setup with Daisy Chain. Connect multiple devices through one USB4® port, reducing cable clutter and supporting various USB4®-enabled peripherals for an efficient and neat desk.Engineered For UnrestrictedData Transfer Speeds.