Features: The ASM1142 -Type-C is dual port high-speed USB3.1 PCI-E add-on card, which conforms to the second generation of PCI-Express for host systems (Dual channel x2) specification. When connected to USB3.1 compliant peripherals, it can transmit data up to 10Gbps The performance of USB3.1 is 2times faster than that of USB3.0. The connection speed is 20times faster than that of USB2.0. It does not require additional power adapter connections PCI-Express Basic Specification Revision 2.0 Dual Channel (x2), compliant with Universal Serial3.1 specification Gen2.Dual external USB3.1 Super Speed+Type-A ports on the expansion system. Each USB- port provides maximum+5VDC/900mA power output to the USB devices. Specifications: Bus- type: PCI-E rev2.0, dual channel x2, SerialATA rev3.1 Gen2 Main chipset: asmedia/ASM1142 Media interface: 2xUSB Type-C ports; 1x 15 pin Sata connector Type: C-C / A-A / A-C Transmission rate: ultra-high speed+(10Gpbs), ultra-high speed (5Gpbs), high speed (480Mbps), Full speed (12Mbps), low speed (1.5Mbps) Compatible equipment: Universal Serial USB3.1/USB3.0/USB2.0/USB1.1 IRQ&IO: Assigned by the system Working Temperature : 0~60C(32~140F) Note: 1. Due to the light and screen difference, the item color may be slightly different from the pictures. 2. Please allow 0.5-2cm differences due to manual measurement. Package includes: 1PC PCIE 4x to USB3.1 Adapter Card