Features: 100% brand new and high quality Easily to update your computer to 5 ports USB3.0(2xType C+3xType A) with PCI 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 Above Quick and easy installation, this USB 3.0 PCI 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. Package Includes: 1 PC x USB 3.0 PCI express card 1 PC x CD Driver 1 PC x User Manual 2Pcs x Screws Specifications: Name: PCI Express To 5-Port USB3.0 Type C Expansion Card interface: 5x USB3.0 A (5G) 2x USB-C (5G) Backwards compatible with USB 2.0 and 1.1 devices; Color: Black Transfer Speed: 5Gbps Size: approx 120x80mm/4.72x3.15in Product weight: 150g Product material: Metal System Requirements Drivers for Windows XP, Vista, and Windows 7 (32/64-bit) are included in the provided CD. Drivers built in to 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.