A coaxial connector comprising: a. a center conductor comprising first and second mating halves (46a, 46b), the first half of the center conductor including a female socket for receiving a male pin of a first mating member, and the second half of the center conductor including a female socket for receiving a male pin of a second mating member, the center conductor having first and second opposing ends (34, 50), and the center conductor having an outer surface; b. a dielectric substantially surrounding the outer surface of said center conductor, said dielectric having a first end proximate the first end of said center conductor, and having a second opposing end proximate the second end of the center conductor, said dielectric having an outer surface and an axial bore, the axial bore including a central region, a first end region and a second end region opposing the first end region, the central region having a first diameter, the first and second end regions having a second diameter greater than the first diameter; c. a generally tubular outer conductor substantially surrounding the outer surface of said dielectric and having a first end proximate the first end of said dielectric, and having a second opposing end proximate the second end of said dielectric; d. the first end of said center conductor and the first end of said outer conductor collectively forming a first end of the coaxial connector for receiving a first mating coaxial member; and e. the second end of said center conductor and the second end of said outer conductor collectively forming a second end of the coaxial connector for receiving a second mating coaxial member, wherein said dielectric has a thermal conductivity of at least about 0.75 W/(m-K), said dielectric extends substantially from approximately said first end of said center conductor to said second end of said center conductor, and European Patent Application No. 05 759 352.7 said outer conductor comprises cooling fins (28, 30, 32) to transfer heat away from said outer conductor. a. a center conductor comprising first and second mating halves (46a, 46b), the first half of the center conductor including a female socket for receiving a male pin of a first mating member, and the second half of the center conductor including a female socket for receiving a male pin of a second mating member, the center conductor having first and second opposing ends (34, 50), and the center conductor having an outer surface; b. a dielectric substantially surrounding the outer surface of said center conductor, said dielectric having a first end proximate the first end of said center conductor, and having a second opposing end proximate the second end of the center conductor, said dielectric having an outer surface and an axial bore, the axial bore including a central region, a first end region and a second end region opposing the first end region, the central region having a first diameter, the first and second end regions having a second diameter greater than the first diameter; c. a generally tubular outer conductor substantially surrounding the outer surface of said dielectric and having a first end proximate the first end of said dielectric, and having a second opposing end proximate the second end of said dielectric; d. the first end of said center conductor and the first end of said outer conductor collectively forming a first end of the coaxial connector for receiving a first mating coaxial member; and e. the second end of said center conductor and the second end of said outer conductor collectively forming a second end of the coaxial connector for receiving a second mating coaxial member,