If you are renting a modem from your Internet Service Provider/ISP (Comcast, Astound, Cox, etc.), then having your own modem should reduce your monthly bill.
Wired modem only. Doesn't include WiFi Router or VOIP Telephone adapter.
Gigabit Ethernet port to connect to computer or Router for fast downloads.
10/10/1000Base-T Ethernet Port (RJ-45)
It comes with an A/C power adapter.
Has LED indictor lights.
Requires CABLE Internet Service, if not sure your provider is CABLE call your ISP to confirm. Expects female BNC connector.