Features: brand new and high quality The high-performance main control chip adopts VL805 USB3.0 high-performance main control chip, which makes the operation more stable, compatible, and product performance is greatly improved. Uses an on-resistance power MOSFET to replace the rectifier diode, so it can reduce the loss of the rectifier Improve the efficiency of the for DC/for DC converter to meet the needs of low voltage and high current rectification. Small size, large current. Low-loss alloy powder die-casting, low impedance, no lead terminal, small parasitic capacitance, solid and firm structure, accurate product, long-lasting rust prevention. for multi systems. for Windows XP, Vista, 7 (driver installation required), for Windows 8, 10 system comes with driver. Specifications: Product Name: PCI-E to USB3 Type C +USB 19PIN 20PIN Input interface: PCI-E x1 Compatible X4/X8/X16 for USB2.0 USB1.1 Colour: Black Material: PCB-board Size: approx 12x6.5x6CM/4.72x2.56x2.36in Package Includes: 1 PC x Expansion Card note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.