1. 300Mbps 2.4GHz WIFI USB wireless network adapter. Equipped with 16dBi high gain directional antenna with narrower beam width, which can better reduce the signal interference from TV, remote control, cell phone, intercom, etc. It can better the stability and speed of WIFI network. 2. zero live installation type, triangle bracket fixed antenna can be placed anywhere on the desktop. 3. because he is a directional antenna, so in the use of the antenna needs to move towards the router's WIFI signal emission direction. This way you can get a stronger signal. 4. antenna + USB wireless network adapter for desktop computers and laptops, you do not need an optical drive to install the driver for the adapter. 5. 16dBi is obviously a very high gain, capable of receiving or transmitting over longer distances,but the maximum wireless signal rate is the physical rate from the IEEE standard 802.11 specification.Actual wireless data throughput and wireless coverage,as well as the number of connected devices,and will depend on network conditions, access point limitations and environmental factors, including building materials,obstructions,traffic volume and density,and the location of the access point. Supports systems:for Win7/Win7.1/Win8/Win8.1/Win8.1/Win10/Win11. Antenna Parameters: Name:WIFI Antenna Frequency range:2400-2500MHz Gain:16dBi SWR:Less than 2.0 Polarization type:Vertical Or Horizontal Radiation:Directional Impedance:50 ohm Working Temperature:-40-85 Connector:SMA Male Or RP SMA Male Colour:As Shown Material:Plastic Package Contents: 1 * Directional Antenna 1 * Cable 1 * Network Card Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.