Connector Type: RP SMA Male ( hole in center/thread inside) to RP-SMA Male (NO Pin). ⚠️Note: RP-SMA ≠ SMA. Not compatible with standard SMA devices. RP = Reverse Pin/Polarity - Therefore the male will not have a pin. Connector Material: Pure copper with Great connectivity (Not Alloy), Surface treatment: Gold-plated, Impedance: 50 ohm, Low-loss 🔍Application: Used for Wi-Fi Antenna / Radio / RF Coaxial Coax / 5G IoT Devices / FPV Drone and so on. Package Included: 2 pieces RP-SMA male to RP-SMA male rf coaxial connector. ♥Backed by a 24-month warranty and 24/7 technical support – email us for instant troubleshooting. ✅【Tip】: Please know the difference between (RP-SMA) and (SMA) before purchase. RP-SMA looks similar, but is not the same! These will not work for RP-SMA. RP-SMA is generally only used for things like WiFi equipment. Still confused? Send us your device port photo via Amazon Messages. BOOBRIE 2PCS RP-SMA Male to RP-SMA Male Adapter RF Reverse Polarity SMA Male Coaxial Connector for FPV Drones, Wi-Fi Antennas, Radio, RF Applications