Item Type: Expansion card Product Model: PCIE-USB3.0-T4b Chip: VL805 Number of Interfaces: 4 SupItem Type: Expansion card Support System: For Windows / XP / Vista / Win7 / Win8 / Win10 and other mainstream systems Fully Compliant: PCI Express Base Specification Version 2.0 Single Channel (x1) PCI Express Throughput Rate: 5Gps Compliance: Universal Serial Bus 3.0 Specification 1.0 Revision Support: Run multiple USB3.0, USB2.0 and USB 1.1 devices simultaneously Support Data Transfer Rates at The Following Speeds: Low speed (1.5 Mbps) / full speed (12 Mbps) / high speed transmission (480 Mbps) / ultra high speed (5 Gbps) Interface: Compliant for Intel's Scalable Host Controller Interface (xHCI)specification 0.96 Support Number of Downstream Ports: 4 downstream ports for all speeds Built-in 4-pin Power Connector: For receiving from an additional power system Hot Plug Function: Allow you to connect/disconnect devices instead of shutting down the system Support System: For Windows / XP/ Vista/7 system (32/64 bit) Slot: One available PCI Express slot (recommended PCI Express 2.0) 1、According to strict rule, such riser card USB3.0 is entitled with high performance, which is faster and more efficient. 2、Adopting Taiwan VL805 USB3.0 chip, this super chip via precision craft by many experts becomes more stable and compatible. 3、With low impedance, high stability and high temperature resistance, these electronic components in high performance and high quality are environmental friendly. 4、Built-in A-level voltage regulator components, it enables to strengthen protection voltage stability. 5、Keeping its high performance for a long time, it can protect data high-speed transmission in a fast way . 1 x Expansion Card 1 x Optical Disc