A guide frame is provided for receiving a pluggable module having guide members that include upper and lower surfaces. The guide frame includes side segments extending lengths from loading ends to mating ends. The side segments are spaced apart from each other to define a receptacle extending therebetween. The receptacle is configured to receive the pluggable module therein. The side segments include upper and lower guide rails for guiding the pluggable module within the receptacle. The upper and lower guide rails are configured to engage the upper and lower surfaces, respectively, of the guide members of the pluggable module when the pluggable module is received within the receptacle. The guide frame also includes a cross member extending from, and interconnecting, the side segments.