General description This 4 Pcs Series 9DBi RP-SMA Dual Band WiFi Router Antenna is designed to enhance your wireless connectivity. With a high gain of 9dBi, it operates across a frequency range of 2.4GHz to 5.8GHz, making it suitable for various routers and WiFi adapters. Technical specifications Gain: 9dBi Frequency Range: 2.4GHz ~ 5.8GHz Voltage Standing Wave: Less than 2 Polarization: Linear Vertical Impedance: 50 Ohms Nominal Direction: Omnidirectional (360° horizontal / 15 ~ 20° vertical) Connector: RP-SMA Material: ABS Antenna Length: 39cm Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with all routers using RP-SMA connectors Works with WHR series routers, E series, Proxim, US Robotics, Wi-LAN, and Tranzeo Compatible with all USB and PCI WiFi adapters with RP-SMA connectors Other information Package contents: 4 x Antenna Note: Light reflection and different displays may cause color variations