4 USB Gadgets that every PC user should keep on hand at all times

Back in the day, PCs used to come with what felt like every port and optical drive available. SD card readers were built directly into the chassis of your favorite desktop computers, alongside optical drives, so you could pop in a copy of your favorite CD and burn it right to the hard drive. But as these fell out of fashion, they also fell out of your standard builds and desktops. Some laptops still have built-in SD card readers, but optical drives are a thing of the past.