Compression connectors and methods are provided that are suitable for mating a flat flexible circuit and a printed circuit board. A mounting assembly secures a locking compression assembly to the printed circuit board. Pliable compression springs mounted on rotatable levers engage the top surface of the flexible circuit and force the flexible circuit down onto an interposer, which in turn forces the interposer down onto the printed circuit board. Stop plates are biased towards the rotatable levers to hold the levers in the closed position. Latch members engage the stop plates to keep the connector closed.