side arrangement in the contact portions thereof where broadside capacitive coupling occurs to and edge to edge arrangement in the tail portions where the terminals are connected to a circuit board fig1 19 show an alternate embodiment of the a connector 300 constructed in accordance with principles of the present invention which utilizes a housing 302 with only one receptacle slot 304 the housing 302 has a plurality of walls and the receptacle slot 304 is defined in the front wall 306 posts 307 that receive mounting screws are show sectioned in this embodiment which are used to mount the connector 300 to a circuit board 13 as shown in fig1 the rear of the connector 300 includes a hollow cavity 309 that accommodates terminal inserts 310 similar to the embodiments explained above the cavity 309 has a series of slots 312 313 of different heights with the slot 312 really being a land as previously described the difference in heights of the slots 312 313 matches the difference in height of the signal and ground insert wafers the cavity also includes a retention rib 314 which the terminal insert wafers engage with retention clips fig1 illustrates the connector 300 with one of the signal terminal insert wafers 320 partially removed from the cavity 309 and the ground terminal insert wafer 322 left in place.