COAXIAL CONNECTOR DEVICE

Provided is a coaxial connector device with which it is possible to inhibit a degradation in transmission characteristics and signal quality at high frequencies. The coaxial connector device 1 includes a main connector 10 and a substrate connector 20. A main connector body 11 has, at one end, a first fitting part R1 for a coaxial cable connector, and at the other end, a second fitting part R2. The interior of the main connector body 11 includes a center contact 13 and a card edge substrate 17 electrically connected to the center contact 13. A slot 23 is formed in a substrate connector body 21. When the second fitting part R2 of the main connector 10 is fitted to the substrate connector 20, an edge part of the card edge substrate 17 joins to the slot 23 of the substrate connector body 21, a plurality of substrate contacts provided to the card edge substrate 17 come into electrical contact with a plurality of internal contacts 25 provided to the substrate connector body 21, and the second fitting part R2 of the