TRENDnet Dual-Band 11a/g 8/6dBi Indoor Directional Antenna with Mounting Base TEW-AI86DB (Blue) Frequency range: 802.11a: 4.9 ~5.875GHz ; 802.11b/g: 2.4 ~ 2.5GHz Gain: 802.11a: 8dBi ; 802.11b/g: 6dBi VSWR: 2.0:1 HPBW/ Horizontal: 802.11a: 50?; 802.11b/g:75? Polarization: Linear, Vertical