This model is a dual band wifi directional antenna for indoor use. Specially created for wi-fi networks of the latest generation IEEE 802.11ac. This bi directional antenna significantly increases the reception range of compatible devices such as the Alfa AWUS036AC and also well suited for home routers to expand coverage and increase reception speed. The directional panel antenna can be rotated, this will allow you not to change the original position of your device. PLEASE NOTE THAT THE INCREASE IN SIGNAL STRENGTH DEPENDS MOSTLY ON YOUR ROUTER OR ADAPTER THIS HELPS TO BUT IT CANNOT TRANSMIT OR RECEIVE POWER THAT YOUR MODEM OR ADAPTER DOES NOT HAVE!!! IT JUST GIVES MORE RANGE NOT STRONGER POWER! | Alfa | | APA-M25 Dual-Band 8/10dBi Indoor Panel Antenna with RP-SMA (Asus WL-ANT-157 Alt | Black | Best Buy