The PERIMICE-520, right there on that page that you pointed to, is a wired trackball. I know because I have one beside me right now with the wire going across the desk. (-:
Now I see...they sell the normal tiltable trackball as vertical.
Thank you for pointing that out.
Perixx arranges things somewhat differently on the U.K./E.U. version of its WWW site.
https://perixx.com/collections/mice?filter.v.t.shopify.conne...