Small Molex 4 pin to take power by the board, or you can into a SATA power.

Transfer rate: 5Gbps/ 480Mbps/ 12Mbps / 1.5Mbps Have unused mini PCIe slot for PC expansion slot a 19-pin USB3.0 theoretical transfer rate up to 5Gbps, much higher than the USB2.0 480Mb / s, up to 10 times īackward compatible with USB2.0, USB1.1, USB1.0 Specifications: Main chip: NEC UPD720202 chipset.(1) Motherboard Mini PCI Express to Dual USB 3.0 20-pin Expansion Card Adapter,Mini PCIe PCI-e to 2 ports USB w/ Molex 4-pin Power Package Contents: 1 x PCIe USB 3.0 PCI express card,1 x Low Profile PCI Slot Cover.Supports motherboard PCI-E X1 X4 X8 X16 slot Compatible OS: Compatible with 64-bit and 32-bit Windows 10 / 8.1 / 8/7 / XP. Specifications: Bus Type: PCI Express Mounting Type: Full Profile PCI slot cover Chipset: VIA VL805 Interface: 2x USB 3.0 Port Type-A & Internal USB 20pin header Data Transfer Rate: USB 3.0 - 5 Gbit/s Connector Type (s) 1 - PCI Express x1 Male External Ports: 2x USB 3.0 Port Type-A Female Internal Ports 2 - USB 3.0 20pin male Power Supply: Build in Self-Powered Technology,Owns individual 2A power supply,no additional power input is required.(16) USB 3.0 PCI Express(PCIe) Expansion Card, PCI-e X1 to 4 Ports USB 3.0(2 USB Type-A+USB Internal 20Pin) Controller Card-Build in Self-Powered Technology-No Need Additional Power Supply

Usb 3 card for pc