This $7.99 TP-Link gigabit switch lets you cheaply upgrade your home network, and it's back at its lowest ever price

Wi-Fi is great until you hit lag, network congestion, or interference. If you need to expand your network, you'll want a network switch with gigabit speeds. Luckily, Amazon's big sale means you can pick up this TP-Link Lightwave 5-port unmanaged Ethernet switch for just $7.99 right now, bringing it back down to its lowest-ever price.

With the LS1005G, you're getting five extra Ethernet ports for your network, although you'll need to use one to connect it to your existing router. There isn't a better option than an Ethernet cable for maxing out the bandwidth on your internet connection, especially if you prefer to stream or play games online.

Gigabit speeds shouldn't seem that exciting these days, but plenty of people are rocking old network hardware that isn't this fast. You don't need to worry about Wi-Fi lag or interference here, as you'll get a solid, dedicated wired connection instead. …