ORICO PCI-E USB 3.1 Gen 2 Card Internal Expansion Card Adapter [Up to 10 Gbps] with 15 Pin Power Connector for PC (PA31-AC) ULTIMATE EXPANSION - Expand your PC to support USB Type C and USB 3.1 capable desktop. EASY CONVERSION - Use your PCI-E (PCI Express 2.0/3.0 /4x/8x/16x) slot to 2-Port USB 3.1 Gen 2 (Type-C and Type-A). LATEST USB 3.1 GEN II - USB 3.1 Gen II (2nd Generation) SuperSpeed Up To 10 Gbps Data Transfer. CUTTING EDGE TECHNOLOGY - Built with Asmedia ASM1142 Chipset, it is the #1 Choice for USB 3.1 Controller Chipset. 18 MONTH WARRANTY WITH LIFETIME TECHNICAL SUPPORT - All ORICO products purchased through Amazon include an 18 month warranty and lifetime technical support. If for any reason you are dissatisfied with your purchase, just let us know and we promise to make it right. USB3.1: transfer speeds up to 10 Gbps Backwards compatible with USB3.0/2.0/1.1. Support independent port power control and over-current detection 15 pin SATA power cord on motherboard could supply power, strengthen the power to support performance This PCI-E card is only compatible withstandard-sized tower cases (not mini computers). This PCI-E card is powered by a 15 pin SATA power connector. Please confirm that your computer power supply is equipped with a15 pin SATA power connectorplug before purchasing. This is necessary to ensure sufficient power supply and smooth transfers, particularly for large data transfers from hard drive disks .