This Dual Band USB Adapter can be widely used. There is wireless router but the desktop cannot connect WiFi;There is network cable but no router, how to connect phone, tablet and laptop with WiFi? There is dual band router, but the computer/laptop cannot connect 5G signal. Well,his adapter will help you out. Features: USB3.0 Highly Efficient Transmission Use USB3.0 interface to provide more efficient data transmission rate. Downward compatible with USB2.0 and USB1.1 One-Button Security Witha push of the WPS button, connect the adapter to the WiFi network without typing a complex password and stay protected with reliable security. External Detachable Antenna Rotatable antenna to adjust signal transmission and receiving source; Longer wireless transmission distance and power performance. Freely Rotate Antenna 5dBi antenna adapts to many narrow surroundings to have better signal. Versatile Use This network card can work with the router and let your laptop connect 5G signal. Insert the network card into the USB interface of the PC host. Install drive to use WiFi. Specification: Standard: IEEE 802.11ac, IEEE 802.11n, IEEE 802.11g, IEEE 802.11b Interface: USB3.0 Frequency range: 2.4GHz-2.4835GHz; 5.12GHz-5.825GHz Wireless Speed: 11ac: up to 866Mps 11n: up to 300Mbps 11g: 6/9/12/18/24/36/48/54Mbps 11b: 1/2/5.5/11Mbps Working channel number: 1-14(2.4G);36-165(5G) Spread spectrum: DSSS Modulation type: OFDM/CCK/16-QAM/64QAM Wireless transmit power: 20dBm(MAX EIRP) LED Light: Status Support operating system: Windows XP/Vista/Win 7/Win 8/ Win10/Mac/Linux Item weight: Approx.25g / 0.88oz Package size: 18.5 * 10.5 * 1.5cm / 7.28 * 4.13 * 0.59in(L * W * H) Package weight: 51g / 1.80oz Package list: 1 * USB Adapter 1 * Antenna 1 * CD