The ASM1142 Type-C is a 2-port USB 3.1 PCI-E add-in card compliant with the PCI-E Gen 2 (x2) specification for systems. When connected to USB 3.1-compatible peripherals, it can transfer data at speeds up to 10 Gbps while maintaining compatibility with existing USB peripherals. USB 3.1 performance is 2 times faster than USB 3.0 and 20 times faster than USB 2.0. It efficiently powers USB devices without the need for an additional adapter. Remote device wake-up is supported via USB keyboard or mouse. The hot-swap feature allows devices to be connected/disconnected without powering down the system. Performance Features: PCI-E specification Revision 2.0 (x2). Compliant with Universal Serial Bus 3.1 specification Gen2. Compliant with xHCI (Extensible Host Controller Interface) specification revision 1.1. Expands external USB 3.1 Super-Speed+ Type-A ports on the system. Each USB port provides +5V DC/900mA output to USB devices. Overcurrent protection is available on each USB port. Bus Type: PCI-E rev2.0, x2, Serial ATA rev3.1 Gen2. Main Chipset: asmedia/ASM1142. Media Interface: 2 x USB Type-C ports. Transfer Speed: Super-Speed+ (10Gbps), Super-Speed (5Gbps), High-Speed (480Mbps), Full-Speed (12Mbps), Low-Speed (1.5Mbps). Compatible Devices: Universal Serial Bus USB 3.1 / USB 3.0 / USB 2.0 / USB 1.1. IRQ&IO: assigned by the system. System Requirements: Windows Server 2003/Vista/Win 7/Win 8/Win 8.1/Server 2012 x64 (32&64bit). An available PCI-E x4 or x16 slot (PCI-E 2.0 recommended). Note: PCI-E x1 slot is not supported. Operating Environment: Operating Temperature: 0~60°C (32~140°F). Operating Humidity: 5%~95%RH. Storage Temperature: -20~70°C (-4~158°F). Material: PCB. Color: Green. Package Contents: 1 x Expansion Card, 1 x CD, 1 x Short Iron Bracket. Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.