Wi-Fi and Bluetooth adapters add wireless connectivity to desktop PCs, laptops and other devices that have no built-in radio or only a weak, outdated one. The category covers USB Wi-Fi dongles, PCIe cards for desktops and Bluetooth adapters for headphones, keyboards and game controllers. They suit anyone fixing a poor signal or upgrading an older machine.
How to choose a Wi-Fi or Bluetooth adapter
Wi-Fi standard. Match the adapter to your router. Wi-Fi 5 (802.11ac) still works well for everyday browsing and HD streaming, while Wi-Fi 6 and Wi-Fi 6E handle crowded networks better. Wi-Fi 6E adds the 6 GHz band, but you only benefit if your router supports it too.
Interface. USB adapters plug into any free port and move easily between computers, which makes them the simplest fix for a laptop. PCIe cards sit inside a desktop, usually offer larger external antennas and keep the USB ports free. Check that your motherboard has a spare slot before choosing a card.
Bluetooth version. Bluetooth 5.0 and newer offer better range and lower power use than 4.x. Newer adapters are normally backwards compatible, so a Bluetooth 5.x adapter will still connect to an older headset, but the older device limits the features you get.
Antennas and range. Small nano adapters are convenient but have limited reach. If the router is a few rooms away or behind thick walls, an adapter with external antennas, or a USB model with an extension cradle, usually holds a steadier connection.
Operating system support. Check the product page for supported systems, such as Windows 10, Windows 11, Linux or macOS. Some adapters install drivers automatically, others need a download, and Linux and macOS support varies between chipsets.
Adapter types and brands
- USB Wi-Fi adapters: the most common type, from small dongles to models with fold-out antennas, usually dual-band for use on both 2.4 GHz and 5 GHz.
- PCIe Wi-Fi cards: internal cards for desktop PCs, often combined with Bluetooth on the same card and connected to external antennas.
- USB Bluetooth adapters: add Bluetooth to a PC without it, for wireless headphones, speakers, mice and controllers.
- Combined Wi-Fi and Bluetooth modules: a single device that provides both, which saves a port or slot.
Brand names and exact models are shown on each product listing, so compare the supported Wi-Fi standard and Bluetooth version there before you buy.
Frequently asked questions about Wi-Fi and Bluetooth adapters
Do I need a Wi-Fi adapter for a desktop PC?
You need one only if your desktop has no built-in Wi-Fi and you cannot connect it to the router with a network cable. Many desktop motherboards have no wireless radio, while most laptops do. A USB adapter is the quickest option, and a PCIe card is a neater permanent solution.
What is the difference between Wi-Fi 5, Wi-Fi 6 and Wi-Fi 6E?
Wi-Fi 6 is newer than Wi-Fi 5 and copes better when many devices share one network. Wi-Fi 6E is Wi-Fi 6 with support for the extra 6 GHz band, which is less congested. To use any of these standards fully, both the adapter and the router must support it.
Can I add Bluetooth to a PC that does not have it?
Yes, a USB Bluetooth adapter adds Bluetooth to almost any PC with a free USB port. Plug it in, install the driver if Windows does not do so automatically, and pair your devices as usual. Choose Bluetooth 5.0 or newer for better range and efficiency.
Will a USB Wi-Fi adapter improve my connection speed?
It can, if your current Wi-Fi is old or weak. Replacing a Wi-Fi 4 or single-band connection with a dual-band Wi-Fi 5 or Wi-Fi 6 adapter often gives faster and steadier speeds. Your internet package and router still set the upper limit, so the adapter cannot exceed them.
