Features These are BNC female to SMA male adapters for antenna connections. They feature wide bandwidth, flawless performance, and high reliability. Gold-plated copper core for durable construction for long-lasting performance. These connectors are made of copper material and have a long service life. 100% brand new product, all refund if unsatisfied If you have any questions. Features: -These are BNC female to SMA male adapters for antenna connections. -They feature wide bandwidth, flawless performance, and high reliability. -Gold-plated copper core for durable construction for long-lasting performance. -These connectors are made of copper material and have a long service life. -100% brand new product, all refund if unsatisfied If you have any questions. Specification: Type: BNC female to SAM male, BNC-K/SMA-J Material: Copper, gold-plated copper core White Isolation: PTFE (high temperature resistance) Impedance: 50Ω Frequency: 0--6Ghz Size(L*W): 24*11mm/0.9*0.4in Weight: Approx.13g/0.5oz Package list: 2 * BNC Female to SMA Male Connectors Package List