The ASMedia ASM3242 is a Universal Serial Bus xHCI host controller, bridging PCI Express to USB3.2 20Gbps, compliant with USB3.2 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 USB3.2 port.  making the card capable of speeds up to 20Gbps and enabling fast access to high-performance devices like NVMe drives and SSDs. The controller card supports Multiple Ins to reduce bandwidth loss when multiple devices are connected through a USB Hub. The card also supports UASP for improved performance with storage devices. 

The application of ASM3242 includes Motherboard, Desktop PC, Notebooks, Workstations, Servers, Add-in cards, PCI Express based embedded platform.

General Feature

• Bridge PCI Express to USB3.2

• Integrate eXtensible Host Controller

• Compliant with eXtensible Host Controller Interface specification Revision 1.1

• Upload firmware through external SPI ROM

• Support in box driver of Microsoft® Windows

• Support various Linux kernel

PCI Express Features

• Support 16-lanes upstream port of PCI Express Gen3

• Support high bandwidth performance with low latency

• Support PCI Express Link power management

• Compliant with PCI Express Base 3.1a Specification

• Compliant with PCI Express Card Electromechanical 2.0 specification

• Compliant with PCI Express Mini Card Electromechanical 1.2 specification

• Compliant with PCI Bus Power Management Interface Specification Revision 1.2

• Compliant with PCI Local Bus Specification Revision 3.0

• Integrate Spread Spectrum Controller for PCI Express interface

• Not support lane reversal

USB Features

• Support eight ports of USB3.2

• Up to 20Gbps 

• Compliant with Universal Serial Bus 3.1 Specification Revision 1.0

• Compliant with Universal Serial Bus Specification Revision 2.0

• Compliant with USB Attached SCSI Protocol Revision 1.0

• Support Multiple INs function 

• Support USB3.2 and USB2.0 Link Power Management

• Support Control, Bulk, Stream, Interrupt, Isochronous transfer type

• Support independent port power control 

• Support overcurrent detection

• Support Remote/Wakeup event

• Integrate Spread Spectrum Controller for USB3.2 interface

• Backward compatible with Legacy USB function and device

• Support the Debugport