USB2514B-USB Hub Expansion Dock

This high-speed 2.0 expansion dock uses

the MICROCHIP USB2514B-AEZC-TR high-speed and stable hub controller.
While the chip itself is relatively expensive, it's cheaper on Taobao, but refurbished units are common. I bought three, all refurbished, and one failed. It's worth a gamble; this design uses a refurbished unit.

The
circuit doesn't require programming; it's ready to use after soldering.
The speed of copying files via USB is shown in the image below. Playing internal videos from a Type-C SSD is also very stable and smooth.
Be aware of cold solder joints, as refurbished units are prone to this.
If the computer doesn't respond or displays a "USB device request failed" message, it's a soldering issue.
The CH340 port is recognized successfully, but a USB flash drive fails to display the "USB device request failed" message—this may be a chip problem .
This project uses a 0402 package.