There are two types of Wi-Fi range extenders: desktop and plug-in. Most desktop extenders look just like a wireless router and are typically equipped with external adjustable antennas, multiple LAN ports for connecting to devices like TVs and gaming consoles, and USB ports for attaching to peripherals such as storage drives and printers. Plug-in extenders are much smaller than their desktop counterparts and are inserted right into a wall outlet. Some models have external antennas, while others use internal antennas to present a discreet profile. Due to their size, plug-in extenders usually have only a single LAN port and lack USB connectivity, making them less versatile but more affordable than desktop extenders. If you can't spare a wall outlet, look for a plug-in model with a pass-through outlet. It's also worth noting that if you're having trouble connecting a computer to Wi-Fi in a particular part of your home, you might be better served by a USB Wi-Fi adapter. For as little as $15, these adapters are essentially antennas that plug directly into your computer to help it pull in a better Wi-Fi signal.