15pin power supply port has strong power. Sata15pin power supply standby interface is equipped to provide you with strong power supply capacity by plugging in the power cord of the computer. It is suitable for most chassis power supplies. You no longer need to worry about power matching. The power supply is sufficient and stable. It supports hot plug instant start, which is easy to install in the PCI Express slot corresponding to the chassis and expands more . The product supports hot plug and instant start, which is convenient for multiple USB to replace, and there is no need to shut down the system when connecting / disconnecting the equipment. The product is made of all solid-state capacitors, equipped with high-performance and high-quality baffles. Solid state capacitors have the characteristics of environmental protection and low impedance. The processing technology of 4-layer PCB board increases the anti-interference ability of the product and improves the stability of product data transmission. Supporting usb3 1 transmission, providing faster speed for the interface, allowing you to experience dazzling data processing and amazing transmission effect. The standard PCI-E interface is widely compatible and supports the -speed pci-e3 0 specification and downward compatible with pci-e2 0 specification, applicable interfaces: PCI-E 2x, PCI-E 4x, PCI-E 8x, pci-e16x Product name: USB3.1 TYPE-C dual port expansion card Product Controller: Asmedia ASM3142 Product interface: dual port TYPE-C Support system: for WIN7/NIN8 WIN10 32/64BIT//linux/ Material:PCB colour:black Package Contents: 1 * Expansion Card 1 * Baffle Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.