Fangrui Product Details The Pcie Expansion Card Can Be Upgraded From The Pcie Slot Inside The Main Unit To 8 Usb 3.2 Ports,providing A Multi-device Connectivity Solution For Your Computer System. Usb Expansion Card Upgrades Your Desktop Computer To 8usb 3.2ports (2x Usb C,5x Usb A) Via A Pci Express X1 Slot.solve The Problem Of Fewer Usb Ports Inside The Computer Host, Allowing More Usb Data Devices To Be Connected To Your Computer System. [superspeed Usb 3.2]supporting Data Fer Rates Of Up To 5gbps, Overall Fer Speed Is Half That Of Older Versions Of Usb 2.0,providing Greater Efficiency For Your File Fers.(note: Actual Fer Speeds May Be Limited By The Connected Device.) [easy To Use-safe]each Port Supports A Maximum Power Of 5w (5v/1a), The Pcie Usb 3.0 Card Can Be Powered From The Pci-e Slot, No External Power Supply Is Required,and The Installation Is Easy. In Addition, Each Interface Has Independent Insurance, With Over-current And Short-circuit Intelligent Protection To Protect Your Computer Equipment. [wide Compatibil