Development of the connector should be smaller (due to a lot of products face to face the development of smaller and lighter, spacing and size, have a certain height requirements, this product will be more sophisticated, such as wire to board the good choice for the small distance between 0.6mm and 0.8mm), high density, high speed, high frequency direction. Miniaturization is the distance between the connectors Center smaller, high density is the core. High density PCB (printed circuit board) effective contacts more than 600 core connectors, special-purpose devices up to a maximum of 5000 cell. High-speed transmission refers to the modern computer, information technology and networking technical requirement of signal transmission standard rate dazhaohe frequency, pulse time achieved in milliseconds, thus requiring high-speed transmission connector. High frequency is to adapt to the development of millimeter-wave technology, RF coaxial connectors have been entering the millimeter-wave frequency band.