If you currently rent a cable modem, check your monthly invoice for the rental fee. Charges apply for Comcast, Cox, Optimum and Spectrum (formerly Time Warner Cable or Charter, depending on the region). However, this may depend on your plan. Cox offers a free modem, for example, if you have a tariff for TV, Internet and digital phone in the package.
If you have a charge on your bill, you can save between $ 60 and $ 120 a year by buying your own modem instead of renting it. Sure, you'll have to pay more in advance – most modems cost between $ 50 and $ 100 – but you'll have to reimburse those fees within a year and save $ 10 a month. That adds up over time. Just make sure that your cable company does not charge you for the rental fee as they have "forgotten" in the past.
Also note that many ISPs rent modem / router combo units. We generally recommend keeping these two devices separate. This manual only covers modems. If you do not have a Wi-Fi router, you'll also need to buy one, which can increase the cost of an upgrade (though you'll still be better off in the long run ̵
Also, some ISPs You may not even Buy your own modem If you have DSL or fiber, you can not use a cable modem Each device uses a spe essential equipment that you need to rent or buy from your ISP. If you combine your private telephone service with your Internet package, you will need a modem with a telephone connection.
Telephony modems are not widely available. A quick search provides expensive products with outdated technology. So you're probably better off renting from your ISP. If you're in a Cox-covered region, you can get a free modem when you bundle services.
If you're not sure what to do, check your ISP's Web site or call Customer Service to see if it's possible to use your own modem. Most modems list compatible modems on their website (here are the lists for Comcast, Cox, Spectrum and Optimum).