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Main image of ASM3142 Dual-Port USB 3.1 Expansion Card PCIe to 2x Type-A, 10Gbps, UASP Support, for Desktop/Server/Industrial Devices

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ASM3142 Dual-Port USB 3.1 Expansion Card PCIe to 2x Type-A, 10Gbps, UASP Support, for Desktop/Server/Industrial Devices

Item #: 9SIVSKVM9S9988
Mfr. Part #: 666C5JS26-1030-ZP03

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ASM3142 Controller for Dual-Port 10Gbps Full Speed Powered by ASMedia ASM3142 USB 3.1 Gen2 controller, supports PCIe 3.0 x2 bandwidth, both ports can run at full 10Gbps simultaneously with Multiple INs technology for full bandwidth utilization
PCIe x4 Interface for Broad Compatibility Standard PCIe 3.0 x4 gold fingers, compatible with x4/x8/x16 slots, backward compatible with PCIe 2.0 motherboards; includes full-height and low-profile brackets for different cases
UASP Support for Better Storage Performance Supports USB Attached SCSI Protocol (UASP), improving read/write performance of external SSDs/HDDs and reducing CPU overhead compared to traditional BOT protocol
Driver-Free for Mainstream Systems Plug-and-play on Windows 8/8.1/10/11 (Win7 requires manual driver), compatible with Linux and macOS, suitable for most desktop and server environments

Overview

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Reviews

ASM3142 Controller for Dual-Port 10Gbps Full Speed Powered by ASMedia ASM3142 USB 3.1 Gen2 controller, supports PCIe 3.0 x2 bandwidth, both ports can run at full 10Gbps simultaneously with Multiple INs technology for full bandwidth utilization

PCIe x4 Interface for Broad Compatibility Standard PCIe 3.0 x4 gold fingers, compatible with x4/x8/x16 slots, backward compatible with PCIe 2.0 motherboards; includes full-height and low-profile brackets for different cases

UASP Support for Better Storage Performance Supports USB Attached SCSI Protocol (UASP), improving read/write performance of external SSDs/HDDs and reducing CPU overhead compared to traditional BOT protocol

Driver-Free for Mainstream Systems Plug-and-play on Windows 8/8.1/10/11 (Win7 requires manual driver), compatible with Linux and macOS, suitable for most desktop and server environments

Additional Information
First Listed on Newegg	October 30, 2026

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Return for refund within: 30 days
Return for replacement within: 60 days
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Item#: 9SIVSKVM9S9988