ConnectorRF coaxial connector SMA male to BNC female low loss coaxial adapters. Connector Material: Copper with Great connectivity (Not Alloy). Surface treatment: Gold-plated. Impedance: 50ohm, Low-loss. Compatibility100% brand new and high quality bnc to sma adapter. These are BNC female to SMA male adapters used for antenna connection. Good PerformanceThe bnc female connectors have wide frequency bandwidth, perfect performance, high reliability. High qualityThe sma female to bnc female connectors are made of copper material, these connectors has long service life. Copper Core: Gold-plated copper core, durable construction for long-lasting performance Package 2pcs BNC female to SMA male connectors. Specification: Type: BNC female to SAM male, BNC-K/SMA-J Material: Copper, gold-plated copper core White Isolation: PTFE (high temperature resistance) Impedance: 50 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