You can upgraded your host computer to multiple USB port (USB C and USB-A)，to facilitate of your external USB devices to your computer . The card's internal 19pin connector can be freely extended to the front panel of your computer depending on your needs. With fast data transfer speeds of up to 5Gbps,you can transfer movie or large files. The Internal circuitry have four power supply, and additional power adapter is required for installation. PCIe card can draw power directly from the PCIE slot inside the motherboard.