SMUGDESK U3142AC PCIe X4 USB 3.1 Gen2 Data Adapter 10Gbps Type-A+Type-C ASM3142 Dual Bracket

Dual 10Gbps USB 3.1 Gen2 Ports

This SMUGDESK U3142AC expansion card adds one Type-A and one Type-C port to a desktop or workstation via a PCIe X4 slot. The ASM3142 controller delivers simultaneous 10Gbps bandwidth on both ports for high-speed peripheral connectivity. It supports Windows and Linux operating systems with backward compatibility for USB 3.0 and 2.0 devices. Full-height and low-profile brackets are included for flexible installation.

Fits Standard and Slim Chassis

Builders with full-size or small-form-factor cases can use the supplied brackets to match their chassis. The card suits users adding external NVMe SSD storage, high-speed docking stations or USB-C peripherals requiring Gen2 speeds. It is not suited for systems lacking a free PCIe X4, X8 or X16 slot. Buyers needing more than two ports or internal drive connectors should look elsewhere.

Sustained Gen2 Throughput

Under continuous load the ASM3142 chip maintains steady dual-port 10Gbps transmission without throttling. Large file transfers to external NVMe storage run at consistent Gen2 rates rather than peaking then dropping. Backward-compatible devices operate at their native USB 3.0 or 2.0 speeds without affecting the adjacent port. The X4 lane design provides sufficient bandwidth headroom for prolonged heavy use.