Features: Easily to update your computer to 4-port USB3.0(1xType C+3xType-A) with PCI-Express to USB3.0 controller adapter card. High performance FL1100 Chip,support 5Gbps Super speed USB3.0 transfer rate. (The actual transmission speed is limited by the setting of the device connected-.) Operating System compatibility : for Window-XP/Vista-/7/8/10/10.8.2 Above With quick and easy installation, this USB3.0 PCI-express I/O-Card offers- a simple solution for connecting to and using USB3.0 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-Express To 4-Port USB3.0 Type-C Expansion Card Number of Interfaces: 3 Port USB3.0 +1 Type-C Color: Black Transfer Speed: 5Gbps Size: approx Mixed Product weight: 100g Product material: Metal System support: for Window-XP/Vista-/7/8/10/MacOS-Pro 10.8.2 Above Note: 1. Due to the light and screen difference, the item color may be slightly different from the pictures. 2. Please allow 0.5-2cm differences due to manual measurement. Package includes: 1Set x PCI-Express USB Expansion Card