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The motherboard has a USB 3.0 to dual Gigabit Ethernet PCIe slot with a fixed RTL8153B chip.

Overview

I recently built a PC and discovered that the motherboard only has a single network card, making it inconvenient to connect a camera. Using a USB-to-Ethernet adapter wasn't ideal either, so I adopted a solution from experienced users, modifying the mounting method to use a PCIe slot and adding double-layer heatsinking to solve the overheating issue. After a day of continuous stress testing and photography, no connection drops were observed, proving that the module can basically meet the requirements in an ideal environment. I'll work on the external power supply setup later when I have time. This is my first time designing a PCB, and I've chosen immersion gold plating by default. Any suggestions or questions are welcome.

Original project link:
https://oshwhub.com/Kirito/usb3-0-wang-ka-rtl8153b

Design Files

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Update:2026-03-28 02:29:13

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