Features: brand new and high quality Universal PCl-E interface: Supported motherboard with x4/x8/x16 slot interface. One step update your computer to 8 ports USB3.2（2xType C+6xType A) Easily with PCI for Express to USB3.2 controller adapter Card. Super speed USB 3.2 supports transfer rates of up to 5Gbps.The actual transmission speed is limited by the setting of the device connected. Backwards for USB 2.0 and 1.1 devices; Operating System Compatibility: for Windows XP/Vista/7/8/10/MacPro 10.8.2 Above. With quick and easy installation, this USB 3.2 PCI for express I/O Card offers an easy solution for connecting to and using USB devices on your standard desktop PC. Enjoy copying videos, music, photos, data files between USB devices and the computer at blazing fast speeds. Specifications: Item Name: Expansion Card Color: Black Size: approx 120x80mm/4.72x3.15in Material: PCB+metal Speed: 20Gbps Feature: Explosion-proof capacitor Supportable: Motherboard with x4/x8/x16 slot interface Package Includes: 1 x Expansion card note: There might be 1-3 for cm error of size for manual measurement. The color's deviation might differ due to different monitor settings, please kindly understand.