Recently, the market of the high-quality audiovisual is increasing, so is the need for reliable multimedia interfaces. These interfaces are required for high data transfer to consumer appliances such as 4K, 8K TV’s, projectors, etc. This thesis is proposed for the high-speed connector to support a high data rate of 12 Gbps per differential pair at the frequency of 12 GHz than the previous connector at the frequency 6 GHz. We have designed the connector by modifying the overall terminal structure i.e., shape, length, and thickness. We have also changed the material properties of its housing enclosure. The proposed connector has verified by 3D EM-simulation. Signal integrity (SI) analysis for insertion loss, attenuation-to- crosstalk ratio (ACR), and impedance matching have conducted. In conclusion, the proposed high-speed connector has enhanced electrical performances than that of the previous connector.