It is a very good piece of equipment. This is the second device, I had a similar one before which I unfortunately destroyed (my fault).
It's almost the same, only this one has a slightly sturdier housing and a stepless LED brightness control.
The resolution is really top notch. As an example, with a bank bill, as it has a lot of small details.
I have the camera to make the job easier. The semi-rigid cable makes the camera easier to guide than cheaper USB cameras with a flexible cable.

Positive points:
- Aukkutausch possible with a little skill.
- Continuous brightness adjustment possible
- Good image quality
- SD card included
- Video recording possible
- dual camera view
- useful settings in the menu
- Rechargeable lithium battery via powerbank

neutral:
- the charging port and SD port could still be protected with a rubber cover, as surely the device is often used in dirty and wet environments.

The cable is 5m long, but I can't imagine I'll need the full 5m, let alone be able to push it that far, especially on various curves I think it will be a bit difficult, anyone who has pulled cables knows what I'm talking about. The case has rubber caps on the sides, so the unit could survive a drop or two.

The case can be easily opened with a small Phillips screwdriver, and the 18650 lithium-ion cell can be easily replaced if the battery breaks at some point, or you can replace the cell with a higher capacity cell.