Connector adapter includes an adapter body having a mating side and a mounting side. The mating side includes signal cavities that open to the mating side. The connector adapter also includes signal conductors extending through the adapter body. Each of the signal conductors has and extends between a pin socket positioned at the mating side and a signal tail positioned at the mounting side. The pin sockets are positioned within corresponding signal cavities. Each of the pin sockets includes first and second arms that oppose each other and define a thru-hole therebetween. The first and second arms engage a signal tail of an electrical connector when the signal tail of the electrical connector is inserted into the thru-hole.