Mixing desk to use with Presonus Audiobox 1818VSL

[siog]

I finally invested in a Presonus Audiobox 1818VSL. I would like to use a 12+ channel mixing desk (with faders) with this USB 2.0 recording interface and I need to know

(a) is there a specific kind of mixer I need to buy?

(b) how should I connect the mixer up to the Audiobox?

Thanks