No need any extra Power Supply, build in Self-Powered IC.
^^ Dual Chipset: ASM3142+VL822 chipset, ASM3142 supports the new feature of USB 3.1 Gen2, named Multiple INs to achieve fully utilization rate of 10Gbps data rate, taking advantage of the available bandwidth of USB 3.1 Gen2 bus. VL822 is a versatile USB 3.1 Gen 2 Hub Controller, offering a highly integrated, application-specific design.
^^ 10Gbps Data transfer: Support 10Gbps data rating and 5V power. Compliant with USB Base Specification 3.1 / 3.0, Output USB 3.0 interface and Type-C interface. Compliant with USB 3.0 Super-Speed (10/5Gbps), USB 2.0 Hi-Speed (480Mbps), USB 1.1 Low-Speed ( 1.5M bps). ^^ Compatible with Windows 7, 8, 10, and Mac OS 10.8. 2 and above. Win 10, Mac OS, and Linux does not need any driver. It requires installing a driver when operating on Windows 7. ^^ Three Type-A USB 3.0 Back Panel Socket & Dual USB 3.1 Type-C USB-C to PCI-E Express Card Adapter ASM3142 VL822