Oodelay UB-135-2 USB 3.1 Gen 2 Type-C SuperSpeed+ 2-Port Low Profile PCIe Host Adapter for Mac/PC Upgrade your legacy Windows PC or MacPro with USB 3.1 Gen 2 (10 Gbps) Technology! Two USB 3.1 Gen 2 Type-C host connectors. Compliant with USB 3.1 Specification Rev 1.0. Low Profile board. Includes both Low Profile and Regular Size PCIe brackets Auto Power directly from PCIe bus, or from 15-pin SATA power connector. When using 15-pin SATA power, it supports up to 5V@3A bus power to USB ports. PCIe x4 card fits in any PCIe 2.0 or PCIe 3.0 x4, x8 or x16 slot. Compatible with Mac 10.9.5 and 10.10, (NOT Mac 10.11), Windows 10/8.1/7/Vista and Windows Server 2012/2008/2003