Features: SMA gold-plated, BNC nickel-plated Precision Connector: With reliable connection performance, ensuring the stability of high-frequency signal transmission. Easy to Use: Simple to plug and unplug without the need for additional tools. Reliability: This connector boasts good anti-interference performance, effectively reducing signal loss and noise. For Electronics Engineers: This connector is an essential tool for professionals in radio frequency and communications. Specifications: Item: SMA Male to BNC Male Adapter Material: SMA gold-plated, BNC nickel-plated Quantity: 1 pc/ 5 pcs/ 10 pcs Note: Transition: 1cm=10mm=0.39inch Please allow a slight difference of 0-1cm due to manual measurement. Colors may appear different depending on light and how the listing is viewed. Thank you for your understanding and attention. Package includes: 1 pc/ 5 pcs/ 10 pcs Adapter (Optional)