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Green circuit board with two blue USB Type-A ports and a 15-pin SATA power connector

Shenzhen Lianrui Information Technology

Shenzhen Lianrui Information Technology LRSU3A42-2A 2 Port USB 3.1 Type-A PCIe x4 Expansion Card

SKU CH-75XY-VD754 MPN LRSU3A42-2A

Adds two USB 3.1 Type-A ports at 10 Gbps via a PCIe x4 slot with a 15-pin SATA power connector

  • TypePCI Express to USB Card
  • External USB Ports2x USB Ports
  • Internal USB Ports2 USB Type A Ports
  • External Ports2 Ports USB 3.1 A
  • Standard2 Port USB 3.1 PCIe Expansion Card
  • Data Transfer Rate10 Gbps
  • Adds two 10 Gbps USB 3.1 Type-A ports via PCIe x4
  • ASMedia ASM3142 controller delivers up to 10 Gbps bandwidth
  • PCIe 3.0 x4 interface fits x4, x8 or x16 slots
  • 15-pin SATA power connector supplies up to 900 mA per port
  • Low-profile and full-height brackets included for flexible installation

Two-port 10 Gbps USB 3.1 adapter

This PCIe x4 card adds two USB 3.1 Type-A ports using the ASM3142 controller. It delivers up to 10 Gbps bandwidth per port and maintains backward compatibility with USB 2.0 devices. A 15-pin SATA power connector supplies the required 12 V and 5 V rails. The low-profile and full-height brackets are both included.

For PCs needing extra high-speed ports

Builders adding fast external storage or peripherals to a desktop or server with a free x4, x8 or x16 slot will benefit. Systems without a spare PCIe slot or an available SATA power lead cannot use this card. Buyers who need USB Type-C connectors or internal header ports should look at a different model.

PCIe x4 host interface with ASM3142 controller

The card occupies a single PCIe 3.0 x4 lane and is compatible with wider x8 and x16 slots. The ASM3142 host controller manages two Type-A ports at 10 Gbps each. This interface and controller combination determines whether the card fits and performs in the target system.

Points forts

  • Adds two 10 Gbps USB 3.1 Type-A ports via PCIe x4
  • ASMedia ASM3142 controller delivers up to 10 Gbps bandwidth
  • PCIe 3.0 x4 interface fits x4, x8 or x16 slots
  • 15-pin SATA power connector supplies up to 900 mA per port
  • Low-profile and full-height brackets included for flexible installation

Caractéristiques

BrandLinkreal
Series2 Port USB 3.1 A PCIe Expansion Card
Model2 x USB-A
TypePCI Express to USB Card
External USB Ports2x USB Ports
Internal USB Ports2 USB Type A Ports
External Ports2 Ports USB 3.1 A
Standard2 Port USB 3.1 PCIe Expansion Card
Data Transfer Rate10 Gbps
Operating Systems SupportedWindows 98SE/ Me/ 2000/ XP
Specifications• ASM3142 chip, USB3.1 Host controller, bridge PCI Express to 2 port USB3.1. • Up to 10Gbps bandwidth performance. • Backward compatible with USB2.0 function and device. • PCIe x4 interface, compatible with slot x8 and x16. • 2 standard USB3.1 Type-A interfaces, support 10G/5G/480M USB data transfer rate. • Compliant with USB 3.1 Gen2. • Support multiple USB devices operating at the same time. • Each USB port provides the maximum output of +5VDC/900mA. • Support Wake On LAN of USB keyboard or mouse devices. • Input power: 15-pin SATA CD-ROM power connection. • Support Control, Bulk,
FeaturesModel: LRSU3A42-2A Controller: ASM3142 Host Bus: PCIe x4 Power dissipation: 1.5W SATA Supply voltage: 12V±8% 5V±9% Operating Temperature: 0°C – 60°C (32°F - 140°F) Storage Temperature: -20°C–70°C Humidity: 5% – 95% Dimension: 106*56mm Weight: 60g Warranty: 2 Years
Dimensions4.17" x2.21" x0.24"
Weight0.28 lb
Package Contents1 - PCIe USB3.1 Type-A Host Bus Adapter 1 - low-profile bracket 1 - full-height bracket(installed) 1 - Warranty Card
OptionPCI-e (X4, X8, X16) to USB3.0

Questions sur cet article

What free PCIe slot width does this card need to run at full 10 Gbps speed?

The card uses a PCIe 3.0 x4 interface and will also fit in x8 or x16 slots while keeping the same bandwidth.

Will my existing USB 2.0 flash drives and peripherals work on the two Type-A ports?

Yes, the ASM3142 controller is backward compatible with USB 2.0 so older devices run at 480 Mbps.

How can I verify each port is delivering the rated 900 mA after installation?

Plug in a bus-powered device and check the current draw in Device Manager or a USB power meter; each port supplies up to 5 V at 900 mA.

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