Actiontec Single Dual-Band Wireless Network Extender and Ethernet Over Coax Adapter (WCB3000N01) (Certified Refurbished) This Certified Refurbished product has been tested and certified to work and look like new, with minimal to no signs of wear, by a specialized third-party seller approved by Amazon. The product is backed by a minimum 90-day warranty, and may arrive in a generic brown or white box. Accessories may be generic and not directly from the manufacturer Turns any existing cable coax connection into a high speed Ethernet outlet Compatible with smart TVs, gaming consoles, Blu-ray players, DVRs, laptops and smartphones Dual 2.4 GHz and 5 GHz radios eliminate wireless dead spots and lost signals throughout the home Wireless extender provides networking speeds twice as fast as wireless repeaters