The desktop stand designed for the "UGREEN SD card reader"

There is also an enlarged top area, where a simple wireless charger can be placed

I used glue to fix the device inside the bracket, and then used screws to fix it on the model.

The link to the Amazon card reader:https://www.amazon.co.uk/gp/product/B0D1XSY7QR/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Design it in Tinkercad and print it on the Ender 3.