ASRock Model USB 3.1/A+C Card Specifications: Platform Size: 3.1-in x 3.2-in, 7.9 cm x 8.1 cm Controller ASMedia ASM1142 PCIE - PCI Express x4 Connector (x2 lane) - Compliant with PCI Express 1.1, 2.0 and 3.0 specifications - Supports data rates up to 10 Gbps - Compliant with x4, x8 or x16 PCI Express Slots Connector 1 x USB 3.1 Type-A Port 1 x USB 3.1 Type-C Port OS Microsoft Windows 8.1 32-bit / 8.1 64-bit / 8 32-bit / 8 64-bit / 7 32-bit / 7 64-bit |