U31X4-PCIE8XG324 | Quad Channel 4-port (1-port x 4) USB 3.1 Gen 2 to PCI Express x8 Gen 3 Host Card | Asmedia ASM3142

U31X4-PCIE8XG324

Quad Channel 4-port USB 3.1 Gen 2 (10Gbps) to PCI Express x8 Gen 3 Host Card

Highlights

Host Bus: PCIe x8 Gen 3 (64.0 Gb/s)

Compliant with PCI Express Base Specification Revision 3.0

Four independent USB 3.1 Gen 2 (10Gbps) Host Controllers (Asmedia ASM3142, USB IF TID 5080000010)

Compliant with Universal Serial Bus 3.1 Specification Revision 1.0
Compliant with Intel’s eXtensible Host Controller Interface (xHCI) specification Revision 1.1
Each USB 3.1 Gen 2 (10Gbps) Host Controller supports one Cable Port (Standard-A Receptacle)

The Vbus of each USB Port has a 2.0A Single Channel Current-Limited Power Switch for protection
- 2.0A (72mΩ on-resistance) Single Channel Current-limited Power Switch
- UL File Number E169910

Introduction

The U31X4-PCIE8XG324 is Quad Channel 4-port (1-port x 4) USB 3.1 Gen 2 (10Gbps) PCI Express x8 Gen 3 Card.

U31X4-PCIE8XG324 is designed with Two key components.

16-Lane, 5-Port PCI Express Gen 3 Switch.
PCI Express to USB 3.1 Gen 2 (10Gbps) Single Chip Host Controller (Asmedia ASM3142, USB IF TID 5080000010)

Technical Specifications

Primary PCI Express	Standards Compliant PCI Express Base Specification, r3.0 (compatible w/ PCIe r1.0a/1.1 & 2.0) PCI Power Management Spec r1.2 Microsoft Windows Logo Compliant Supports Access Control Services Dynamic link-width control Dynamic SerDes Speed Control High Performance performancePAK Multicast Dynamic Buffer/FC Credit Pool Non-blocking switch fabric Full line rate on all ports Cut-Thru packet latency of less than 100ns between symmetric (x4 to x4) ingress and egress Ports 2KB Max Payload Size Quality of Service (QoS) Traffic Class Queuing Eight Traffic Classes per port Weighted round-robin source port arbitration
Secondary PCI Express	Support PCI Express Gen2x2 or Gen3x1 Up to 10Gbps bandwidth performance with low latency Support PCI Express Link power management Compliant with PCI Express Base 3.0 Specification Compliant with PCI Express card Electromechanical 2.0 specification Compliant with PCI Express Mini Card Electromechanical 1.2 specification Compliant with Express Card Standard Revision 2.0 Compliant with PCI Bus Power Management Interface Specification Revision 1.2 Compliant with PCI Local Bus Specification Revision 3.0 Support overclocking capability on PCI Express interface
USB Features	One Channel support one port of USB 3.1 Up to USB 3.1 Gen 2 10Gbps 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 USB 3.1 and USB 2.0 Link Power Management Support Control, Bulk, Stream, Interrupt, Isochronous transfer type Support independent port power control Support overcurrent detection Integrate Spread Spectrum Controller for USB 3.1 interface Backward compatible with Legacy USB function and device Support the Debugport
USB Data Transfer Rate	USB 3.1 Gen 2 (10G), USB 3.1 Gen 1 (5G), USB 2.0 (480MB)
Number of Ports	Eight independent USB 3 Cable Ports Right A-type Receptacle The Vbus of each USB Port has a 2.0A Single Channel Current-Limited Power Switch for protection (IC-S0371-03H) 2.0A (72mΩ on-resistance) Single Channel Current-limited Power Switch UL File Number E169910
USB Bus Power Input	12V Step-Down to 5V from either PCIe 12V or Power Connector 12V (ATA 4-pin or SATA 15-pin) The USB Bus power (5V) are step-down from 12V and the 12V input might from either PCIe Edge Connector or Auxiliary Power Connectors (J1 & J2). Note: If the PCIe Slot can’t supply 12V current high enough then you have to attach the Auxiliary Power from either J1 (ATA 4-pin) or J2 (SATA 15-pin).