Fangrui Product Details Using The Main Control Chip Of , The Leader Of The Usb3.0 Association One Of The Few Expansion Cards On The Market That Can Support The Linux System No Need For External Power Supply Design, Using 2 5a High-power Dc-dc The Expansion Card Uses 7 High-performance Solid-state Capacitors, Which Greatly Ensures The Stability Of Usb Power Supply The Built-in Usb Is Plugged In Backwards And Supports Small Chassis, So That Usb Devices Can Be Built In Product Model:pce4usb-ro5 Product Interface:pci-e 1x (supports 1x/4x/8x/16x Slots) Output Interface:built-in Double-layer 4-port Usb-a5gbps Product Speed:5gbps (measured Fastest 350-400m/s) Support Size:default Full-height Baffle Main Control Chip:renesas Upd720201 (for Original-) System Support:win7 Win10 Win11 Linux Note:the Installation Speed Of The Driver Is Slow For Systems Below Win7. It Is Recommended To Use Systems Above 10 Colour:as Shown Material:pcb Package Contents: 1 * Pci-e Expansion Card Only The Above Package Content, Other Products Are Not Includ