CUSTOMER SUPPORT: Technical support for usb 5ghz wifi adapter is accessible 7 days a week, 24 hours a day. Please contact us if you have any issues with the wifi stick, and we will respond within 24 hours to assist you with any issues you may have with our wireless dongle. CONVENIENT AND COMPACT: The tiny form of the usb wireless network adapter WU1300 makes it easy to carry around for mobile users; simply plug 802.11ax desktop wifi adapter into a USB port and go. 802.11ax usb adapter will not block other USB ports or fall out. Linux compatible wifi adapter provides flexible connectivity in both the 2.4GHz and 5GHz bands. You can freely switch between the two frequency bands. This technology of wireless usb decreases interference. COMPATIBILITY: USB computer network adapters is compatible with Windows 7/8/10, MAC OS 10.5-10.15 and Linux (Kernel 2.6.24~4.15). wireless usb adapter will work with any router. Package includes a CD with the drivers of usb network adapter, you can install it by following the written instructions. At the same time, if a CD ROM is not suitable for you, we also provide a download address with computer network adapters that is stated on the manual, from which you can obtain the driver. USB 3.0 WIRELESS ADAPTER: Unlike other AC1200 USB 2.0 Wireless adapters, Our usb wireless adapter has a lightning-fast USB 3.0 port. The maximum speed of a USB 2.0 port is only 480Mbps and cannot meet the high speed of 867Mbps on 5GHz. However, our wifi adapter for gaming pc USB 3.0 is unique in that its transmission speed is ten times faster than USB 2.0, allowing it to fully meet the AC1300 Wi-Fi speed transmit requirement for pc wifi adapter. WIFI USB AC1300 WiFi SPEED: Wifi adapter has up to 400Mbps on 2.4GHz and 867Mbps on 5GHz with AC1300. Usb wifi adapter upgrades your PCs/laptops to 802.11ac, which is three times faster than wireless N speeds, and usb wifi provides a long range and lag-free connection across the home. Wifi dongle is best for 4K Ultra HD video streaming and online games.