Most flash drives still have a rectangular USB-A plug, which will work on most Windows PCs and older Macs plus most printers, smart TVs, routers and other devices. (Each new protocol also supports the earlier ones.) Some USB drives also have built-in encryption, good to have if the drives get lost or stolen. Not all your devices can handle the fastest data-transfer protocols, but the devices you buy in the future will. That's because there are at least four different USB connection protocols - USB 2.0, USB 3.0, USB 3.1 and USB 3.2 - each several times faster than the previous one. Fast read/write speeds can save you quite a bit of time when copying large files. Yet choosing the right USB drive isn't always so simple. For just a few dollars, you can keep all the personal files you'll ever need right on your keychain. ![]() USB memory sticks now hold much more data and can read and write data much more quickly than they could just a few years ago, thanks to faster protocols and cheaper storage costs. In most cases, you'll just need to plug the drive into a USB port and drag-and-drop the files. If your USB drive has a lot of storage space, you can also use it for partial or full computer-system backups. Keeping one or more of the best USB flash drives around the house lets you quickly move large files from one computer to another, and also to printers, routers or even smart-TV sets.
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