SIIG USB 3.1 (Gen 1) 3-Port PCIe with Charging Port - Type-C Ready Adds one external USB 3.1 Type-C port, one USB BC 1.2 charging port and one internal 19 pin USB 3.1 header to desktop computer with an available Pie slot Supports SuperSpeed USB data transfer rates up to 5Gbps providing fast and smooth data transmission BC 1.2 charging port provides ultra-fast charging (5V/2.4A) output to smartphones or tablet computers and built-in Over-Current protection Includes standard height and low-profile brackets offering the utmost flexibility in system chassis installation Easily add two USB 3.1 Gen 1 ports through the built-in 19-pin header direct connect to your system chassis front access USB 3.1 Gen 1 ports