Features: brand new and high quality Easily to update your computer to 5 ports USB3.0(2xType Cand3xType 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 or Vista or 7 or 8 or 10 or MacOS Pro 10.8.2 Above Quick and easy installation, this USB 3.0 PCI for express I or 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 Card interface: 5x USB3.0 A (5G) 2x USB-C (5G) Backwards for USB 2.0 and 1.1 devices Color: Black Transfer Speed: 5Gbps Size: approx 120x80mm or 4.72x3.15in Product weight: 150g Product material: Metal System Requirements Drivers for Windows XP, Vista, and for Windows 7 (32 or 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 Driver 1 PC x User Manual 2Pcs x Screws Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.