Siemens SL2-141-I

Hallo
I am in Hannover for more than a year now and could use some help with this router. I have been told it is a good one.
In the US I had a cable modem with 3 PCs and a net printer connected through a switch or as some call it, a router.
The Siemens router has 4 RJ-45 and 1 USB jack.

Also I could use help to see if it's possible to use this router to share files and use the USB jack to share the printer.
Bitte entschuldigen sie für mein Englisch. Ich spreche und lese Deutsch aber für Computer...