ASMedia ASM3142 is the next generation Universal Serial Bus xHCI host controller, bridging PCI Express to USB3.1 Gen-II, compliant with USB3.1 Specification Revision 1.0 and Intel eXtensible Host Controller Interface specification revision 1.1. It also supports backward compatible with legacy USB function and devices, compliant with USB Attach SCSI Protocol revision 1.0, supporting the function of debugport on port A of USB.

ASMedia ASM3142 also supports the new feature of USB3.1 Gen2, named Multiple INs to achieve fully utilization rate of 10Gbps data rate, taking advantage of the available bandwidth of USB3.1 Gen2 bus.

ASM3142 supports two USB3.1 Gen-II ports and perform trusting high speed bandwidth with PCI Express Gen-III x2 supporting. It uses advance process with low voltage supply, following standard PCI Express/USB bus power management and advance chip power management to reduce total power consumption efficiently under idle/standby state.

ASM3142 integrates ASMedia self-designed PCI Express/SuperSpeed USB/USB2.0 PHY, supporting in box driver of Microsoft® Windows and various Linux kernels. The application of ASM3142 includes Motherboard, Desktop PC, Notebooks, Workstations, Servers, Add-in cards, PCI Express based embedded platform.