This sale is for a pair of ARRIS SURFboard SBG6950AC2

This is a 3-in-1 device that combines a DOCSIS 3.0 cable modem, an AC1900 dual-band Wi-Fi router, and a 4-port Gigabit Ethernet switch.

Comes with one power supply.

One of these was my router for the past 5 years, and it works great.

The other was a back up that I purchased (but never used)

Both will need to be reset, but your cable internet provider can do that for you remotely.