Features:brand new and high qualityEasily to update your computer to 5 ports USB3.0(2xType C+3xType A) with PCI for Express to USB3.0 controller adapter card.High performance chip,support 5Gbps super speed USB 3.0 transfer rate. (The actual transmission speed is limited by the setting of the device connected.)Operating System compatibility : for Windows XP/Vista/7/8/10/MacOS Pro 10.8.2 AboveQuick and easy installation, this USB 3.0 PCI for express I/O Card connecting to and using USB 3.0 devices on your standard desktop PC.Enjoy copying videos, music, photos, data files between USB devices and the computer at blazing fast speeds. Specifications:Name: PCI for Express To 5-Port USB3.0 Type C Expansion Cardinterface: 5x USB3.0 A (5G) 2x USB-C (5G)Backwards for USB 2.0 and 1.1 devices;Color: BlackTransfer Speed: 5GbpsSize: approx 120x80mm/4.72x3.15inProduct weight: 150g Product material: MetalSystem RequirementsDrivers for Windows XP, Vista, and for Windows 7 (32/64-bit) are included in the provided CD.Drivers built in to for Windows 8 ,WIN10,WIN11,MAC10.8.2 above (no install required). Note:Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand.The error of manual measurement of the size is within the normal range of 0-2cm. Package includes:1 PC x USB 3.0 PCI for express card 1 PC x CD Driver1 PC x User Manual2Pcs x Screws