Welcome to our store! 1. USB 3.0 Controller: Features four USB 3.0 controllers with a bridge controller, ensuring each channel shares independent bandwidth without speed reduction. 2. Premium Main Control Chip: Utilizes a high-quality main control chip with beautifully welded components, sufficient surrounding originals, and a neat layout to minimize interference and enhance stability. 3. All Solid Capacitors: Employs all solid capacitors, with each interface equipped with an independent voltage stabilizing capacitor for stable power supply. Each interface has independent safety features. 4. High Temperature Resistance: Capacitors are solid chip-type, withstanding temperatures up to 250 degrees Celsius for enhanced stability and heat resistance compared to ordinary capacitors. 5. 3A Power Supply: The PCI Express card includes a larger heatsink for improved heat dissipation and a built-in power supply module providing 3A power. Item Type: PCIE to USB 3.0 Material: PCB Bus Interface: PCI EX4 (compatible with PCI EX4X8X16) Expansion Interface: External USB 3.0 Interface x4, Built-in 19Pin Interface x2 Operating Environment: 0℃ to 70℃ Transmission Speed: 5Gbps x4 System Support: Win XP, Win7P, Win8P, Win10, LINUX, ESxI, etc. Package Includes: 1 x CD Drive Disc 1 x Riser Card 1 x Screw Package Customer Satisfaction: Your satisfaction is our top priority. If you encounter any issues with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We are committed to providing the best after-sales service.