If you just plugged yours in and saw "Unknown USB Device" or no Wi-Fi networks appear, don't throw it away. You simply need the correct driver. Here is exactly how to find and install it. Most generic 450Mbps adapters use chipsets from Realtek (RTL8192EU, RTL8188) or Mediatek/Ralink (RT3070, RT3572) . Windows does not ship with these drivers pre-installed. Without the driver, your PC does not know how to "talk" to the adapter.
Don't panic if it doesn't work out of the box. Download the Realtek 8192EU or Ralink RT3070 driver, install before plugging in, and you will be online in five minutes. Have a different model? Tell us the brand and "VEN_DEV" ID from Device Manager (Details tab → Hardware Ids) in the comments, and we will help you find the exact driver. 450m Wireless-n Mini Usb Adapter Driver Download
The Ultimate Guide to 450M Wireless-N Mini USB Adapter Driver Download (Install & Fix) If you just plugged yours in and saw
However, there is one universal truth about these adapters: Most generic 450Mbps adapters use chipsets from Realtek
Do not use third-party "Driver Updater" software. They are often malware or adware. Always get the driver directly from the manufacturer or a trusted chipset source. Method 1: Find the Driver via the Chipset (Most Reliable) Since many of these adapters are sold under no-name brands (e.g., "Generic," "Logilink," "Cudy," or just a blue plastic dongle), you need to find the internal chipset.