Seconded. The size is gonna be tough to beat, especially when you take into account the 48V Phantom Power. You can get the RCA outs and use an RCA>Miniplug cable.
An Aerco MP-2 would also meet your criteria, but at more than three times the cost of a Littlebox.
I'd say get the Littlebox, and if you decide it's not for you, you can flip it in the yardsale with no problems.
Just my two cents.