The best cable modem/router combos do the same thing, but cost a fraction of the cost of two devices. They also operate much more simply, with fewer cables and outlets.

However, not all modems work with all providers, and you'll want to make sure that the device you buy is compatible with your cable company (such as Spectrum, Cox, or AT&T). Compatibility information can usually be found on your cable provider's website. If not, it's best to call and check before you buy.

If it's time to upgrade your modem and router, the Motorola MG7700 is probably the right one for you if you're a Comcast Xfinity, Cox, or Spectrum customer and aren't paying extra for a super-fast plan. Your cable company (or even your monthly bill) should be able to tell you what speed connection you have. If you're on a basic plan, however, it almost certainly won't be what's known as a 1-gigabit connection, and if it is, we've got a few choices for you below.

One of the best things we like about the Motorola MG7700 has nothing to do with its technical prowess: it's not hideously ugly. To get the most out of its wireless signal, you won't want to hide this modem/router behind furniture or in a closet. But this device is just innocuous enough that you can tuck it away on a side table in your living room without embarrassment.