Features: Brand new and high quality. The high-performance main control chip utilizes the VL805 USB3.0 high-performance main control chip, ensuring more stable operation, enhanced compatibility, and significantly improved product performance. Employs an on-resistance effect MOSFET to replace the rectifier diode, reducing rectifier loss. Improves the efficiency of the DC/DC converter to meet the demands of low voltage and high current rectification. Small size, large current. Low-loss alloy powder molding, low impedance, no conductive terminals, small parasitic capacitance, solid and firm structure, precise product, long-lasting anti-rust properties. Supports multiple systems. For Windows XP, Vista, 7 (driver installation required), for Windows 8, 10 systems come with drivers. Specifications: Product Name: PCI-E to USB3 Type C + USB 19PIN 20PIN Input Interface: PCI-E x1 Compatible with X4/X8/X16 Supports USB2.0 USB1.1 Color: Black Material: PCB Board Size: Approx. 12x6.5x6CM / 4.72x2.56x2.36in Note: Due to lighting effects and shooting angles, there may be certain tolerances in the product; please understand. Please allow 0-1cm error due to manual measurement. Package Includes: 1 PC x Expansion Card