there are small usb thumb drives like san cruzer fit, they only stick out a few millimeter, less then the power connector of a notebook
i know it feels lame and uncool but starting with the FAQ makes sense sometimes
https://xpenology.com/forum/topic/9394-installation-faq/?do=findComment&comment=81096
output from both commands are attached Foxbi.
Although I'm not sure if I did the sh -x command correctly (was done in powershell)
cat-proc-cpuinfo output.txt
ch_cpuinfo output.txt