Some devices also have an additional power cable. You just plug it into an open USB port on your PC. USB Wi-Fi adapters, on the other hand, are much easier to install. We’ll talk about this a bit later in the article. You’ll also need to make sure you have an open PCI slot on your motherboard, and that you buy a compatible card. On the down side, you will need to open your PC’s case to install the card. The antennas are replaceable, meaning that you can use a bigger, higher gain antenna if you need a better signal, or even hook up a cable so that you can place the antenna elsewhere in the room. On the plus side, they are generally inexpensive. The end where your antennas connect is exposed through the back of the PC. PCI cards plug into one of the open PCI-Express slots on your motherboard. Which type you get just depends on your situation. You can just add an additional Wi-Fi adapter in a different form, whether that’s a USB adapter or a new PCI Wi-Fi card. Luckily, desktops are flexible enough that you don’t need to replace or repair the broken one. Many motherboards and desktop PCs include Wi-Fi capabilities right on the motherboard-note the antenna connections. If this thing is broken or outdated (for example, it doesn’t support modern 5GHz wireless connections), you can’t really replace it without buying a new motherboard or a PC. You can usually see the antenna poking out of the back of the main I/O plate, next to your USB ports or monitor output. Modern motherboards often include a Wi-Fi adapter right on the motherboard, especially if they’re for smaller compact PCs. A USB Wi-Fi adapter is the quickest, easiest way to add or upgrade wireless capability. Just buy a new one, plug it in, make sure your drivers are installed, and boom-you’ve got Wi-Fi.
In desktops, access to Wi-Fi (and sometimes Bluetooth, too) generally comes in three different flavors: Let’s start with the easy one: desktop PCs.
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