Features: SMA gold-plated, BNC nickel-plated Precisionconnection: With reliable connectionperformance, ensuring the stability of high-frequency signal transmission. Easy to use: Easy to plug and unplug without the need for additional tools. Reliability: This connector has good anti-interferenceperformance and can effectively reduce signal loss and noise. For electronic engineer: This connector is one of the necessary tools for professionals in the field of radio frequency and communication. Specifications: Item：SMA male to BNC male Adapter Material: SMA gold-plated, BNC nickel-plated Quantity：1PC/ 5PCS/ 10PCS Package Includes: 1PC/ 5PCS/10PCS Adapter （Optional） note: Transition: 1cm=10mm=0.39inch Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention