A cabinet having a frame, a plurality of posts and a plurality of connector assemblies. The connector assemblies adapted to connect the posts to the frame. The connector assembly is provided with a gusset fixed to the frame, and a clamp plate connected to the gusset and received in the post so as to be engageable with a portion of the post. The clamp plate being movable with respect to the gusset such that upon movement of the clamp plate toward the gusset the clamp plate clamps the post between the clamp plate and at least one of the gusset and the frame, and a clamp plate.