Co., LtdRF2111027 4 Direct-connected external antenna 2.4GHz 50O - Antennas ROHS selling by HJ Technology Co., Ltd is an enclosed network antenna which combines advanced technology and high performance materials. It is a high gain, low VSWR, with an amazingly low loss and good radiation pattern. This antenna provides superior operation and is perfect for a wide range of applications such as wireless communication, GPS, mobile phones, internet, electronic surveillance, and intelligent transportation systems. It has been tested to be compatible with various wireless protocols, such as 802.11b, 802.11n, 802.11a, and Bluetooth. It also supports frequency band operations from 2.4 GHz to 5.8 GHz. It is RoHS compliant, comes with 4 direct-connected external antenna connectors and operates on a 50lbs impedance standard. Its compact form factor assures easy installation.