There are many type of cox modem router combo, you can check below list with features

ARRIS Surfboard SBG10 DOCSIS 3.0 Cable Modem & AC1600 Dual Band Wi-Fi Router, Approved for Cox, Spectrum, Xfinity & Others (Black)

$129.99
$60.00  in stock
4 new from $117.81
39 used from $60.00
Buy Now
Amazon.com
as of July 5, 2020 7:07 am

Features

  • 3 products in 1: DOCSIS 3 0 Cable Modem, AC1600 dual-band Wi-Fi Router, 2 Port Gigabit Ethernet Router (cable digital voice service not supported)
  • Compatible with major U S Cable Internet Providers including Cox, Spectrum, Xfinity & others. Cable internet service required. Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers
  • 16 downstream & 4 upstream channels. Best for cable internet service plans up to 400 Mbps.
  • Wi-Fi 5 AC1600 dual-band concurrent Wi-Fi Router with 2 Gigabit Ethernet ports
  • Setup and manage your network with the SURFboard Manager app

MOTOROLA MG7540 16x4 Cable Modem Plus AC1600 Dual Band Wi-Fi Gigabit Router with DFS, 686 Mbps Maximum DOCSIS 3.0 - Approved by Comcast Xfinity, Cox, Charter Spectrum, More

$129.99
$114.38  in stock
10 new from $128.99
4 used from $114.38
Free shipping
Buy Now
Amazon.com
as of July 5, 2020 7:07 am

Features

  • 16x4 DOCSIS 3.0 cable modem plus a built-in AC1600 Dual Band (2.4 GHz and 5 GHz) WiFi Gigabit Router with four Gigabit (GigE) Ethernet ports, a firewall, and more. This product is recommended for actual cable Internet service speeds up to 375 Mbps. A Broadcom cable modem chipset provides security from Denial of Service attacks.
  • Requires cable Internet service. Approved by Comcast Xfinity and Xfinity X1, Cox, Charter Spectrum, BrightHouse, WOW!, CableOne, RCN, Mediacom and other cable service providers. ELIMINATE CABLE MODEM RENTAL FEES UP TO 156 DOLLARS PER YEAR. (Savings are shown for Xfinity and vary by provider). NOT COMPATIBLE with Verizon, AT&T, CenturyLink and other fiber optic, DSL or satellite services. Model MG7540 DOES NOT have a phone jack. This model CANNOT be used for making or receiving telephone calls.
  • Built-in high-speed WiFi router with AC1600 Wi-Fi provides Internet access for WiFi devices including smartphones, notebooks, tablets, game stations, HDTVs, Amazon Echo, Google Home, Chromecast, Roku, Amazon Fire TV, and AppleTV. Four 10/100/1000 Gigabit Ethernet LAN ports provide wired connections to Windows and Mac computers, HDTVs, game stations, streaming TV devices, and other Ethernet-capable devices.
  • The router can work on WiFi DFS frequencies, unlike most routers, so it is much less vulnerable to WiFi interference from neighbors. AnyBeam beamforming at both 2.4 GHz and 5 GHz frequencies focuses the signal on wireless clients to further enhance performance and range.
  • Integrating the cable modem and router creates a reliable connection that reduces unwieldy wiring and power adapter clutter while conserving desk space. The vertical design minimizes shelf space and improves cooling while looking great in any home or office. A two-year warranty plus rugged lightning and power surge circuits protect your investment. Includes phone and web support by friendly, professional USA-based technical support specialists. Phone support is provided in English and Spanish.

NETGEAR Nighthawk Cable Modem WiFi Router Combo C7000-Compatibility Cable Providers including Xfinity by Comcast, Spectrum, Cox (Renewed)

$149.00
$129.00  in stock
4 new from $129.00
Free shipping
Buy Now
Amazon.com
as of July 5, 2020 7:07 am

Features

  • COMPATIBLE WITH ALL MAJOR CABLE INTERNET PROVIDERS: Including certification by Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and Cable bundled voice services
  • SAVE MONTHLY RENTAL FEES: Model C7000 replaces your cable modem and WiFi router saving you up to $150/yr in equipment rental fees. System Requirements Cable broadband Internet service, Check your cable Internet service provider web site for data speed tier compatibility, Not compatible with Cable bundled voice services, Microsoft Windows 7, 8, Vista, XP, 2000, Mac OS, UNIX, or Linux, Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher
  • BUILT FOR FAST SPEED: Best for cable provider plans up to 400 Mbps speed
  • FAST Wi Fi PERFORMANCE: Get up to 1800 sq ft wireless coverage and 30 devices connected with AC1900 speed (up to 1900 Mbps)
  • VERSATILE CONNECTIONS: 4 Gigabit Ethernet ports and 2 USB ports give you fast wired connections to your computer, printer, game box, storage drive, and other devices

NETGEAR N600 (8x4) WiFi DOCSIS 3.0 Cable Modem Router (C3700) Certified for Xfinity from Comcast, Spectrum, Cox, Spectrum & more

$99.99
$39.99  in stock
51 new from $70.27
30 used from $39.99
Buy Now
Amazon.com
as of July 5, 2020 7:07 am

Features

  • ELIMINATE MONTHLY CABLE MODEM RENTAL FEES Up to $120 per year
  • Two in One DOCSIS 3.0 Cable Modem + WiFi Router with 2 Gigabit Ethernet ports and 1 USB 2.0 port.System Requirements Microsoft Windows 7, 8, Vista, XP, 2000, Mac OS, or other operating systems running a TCP/IP network. Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher
  • Up to 340Mbps modem speed and Dual Band N450 (2.4GHz & 5GHz) WiFi speed. 8x4 channel bonding, Denial of Service (DoS) attack prevention
  • DOCSIS 3.0 unleashes 8x faster download speeds than DOCSIS 2.0
  • Ideal for streaming HD videos, faster downloads, and high speed online gaming

(Renewed) NETGEAR Nighthawk AC1900 (24x8) DOCSIS 3.0 WiFi Cable Modem Router Combo (C7000) for Xfinity from Comcast, Spectrum, Cox, more

$199.99
$129.00  in stock
4 new from $129.00
Free shipping
Buy Now
Amazon.com
as of July 5, 2020 7:07 am

Features

  • This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com
  • Compatible with Xfinity from Comcast, Spectrum, Cox, CableONE & more. Not compatible with Cable bundled voice services
  • Three-in-one DOCSIS 3.0 Cable Modem + AC1900 WiFi Router+ 4 Gigabit Wired Switch
  • Up to 960Mbps modem speed and Dual-Band AC1900 (2.4GHz & 5GHz) WiFi speed. 24x8 channel bonding/ Approved for plans up to 500 Mbps
  • DOCSIS 3.0 unleashes 24x faster download speeds than DOCSIS 2.0

Netgear C6250-100NAS AC1600 (16x4) WiFi Cable Modem Router Combo (C6250) DOCSIS 3.0 Certified for Xfinity Comcast, Time Warner Cable, Cox, More (Renewed)

$89.99  in stock
3 new from $89.99
Free shipping
Buy Now
Amazon.com
as of July 5, 2020 7:07 am

Features

  • Compatible with Xfinity from Comcast, Spectrum, Cox, CableONE & more
  • Three-in-one DOCSIS 3.0 Cable Modem + AC1600 WiFi Router+ 2 Gigabit Wired Switch
  • Up to 680Mbps modem speed and Dual-Band AC1600 (2.4GHz & 5GHz) WiFi speed. 16x4 channel bonding/ Approved for plans up to 300 Mbps
  • DOCSIS 3.0 unleashes 16x faster download speeds than DOCSIS 2.0
  • NETGEASR Genie App +Content filtering Parental Controls allow you to easily manage your network from your Mobile device.Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher

ARRIS SURFboard SBG7400AC2 DOCSIS 3.0 Cable Modem & AC2350 Dual-Band Wi-Fi Router, Approved for Cox, Spectrum, Xfinity & others (black)

$147.00
$89.76  in stock
3 new from $147.00
26 used from $89.76
Free shipping
Buy Now
Amazon.com
as of July 5, 2020 7:07 am

Features

  • 3 products in 1: DOCSIS Cable Modem, AC2350 dual-band Wi-Fi, 4 port Gigabit Router (cable digital voice service not supported)
  • Compatible with major U.S. Cable Internet Providers including Cox, Spectrum, Xfinity & others. Cable internet service required. Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers
  • 24 downstream & 8 upstream channels. Best for cable internet speed plans up to 6 Mbps. Cable internet service required.
  • Wave 2 AC2350 dual-band concurrent Wi-Fi Router with 4 Gigabit Ethernet ports
  • Setup and manage your network with the SURFboard Manager app

Netgear C6300-100NAS AC1750 (16x4) DOCSIS 3.0 WiFi Cable Modem Router Combo (C6300) Certified for Xfinity from Comcast, Spectrum, Cox, Cablevision & more,Black

$189.99
$69.98  in stock
21 new from $153.00
30 used from $69.98
Buy Now
Amazon.com
as of July 5, 2020 7:07 am

Features

  • Compatible with Xfinity from Comcast, Spectrum, Cox, CableONE & more
  • Three-in-one DOCSIS 3.0 Cable Modem + AC1750 WiFi Router+ 4 Gigabit Wired Switch
  • Up to 680Mbps modem speed and Dual-Band AC1750 (2.4GHz & 5GHz) WiFi speed. 16x4 channel bonding/ Approved for plans up to 300 Mbps
  • DOCSIS 3.0 unleashes 16x faster download speeds than DOCSIS 2.0
  • Ideal for streaming HD videos, faster downloads, and high-speed online gaming

NETGEAR Cable Modem CM500 - Compatible With All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 300 Mbps | DOCSIS 3.0

$62.99
$16.34  in stock
1 new from $62.99
25 used from $16.34
Free shipping
Buy Now
Amazon.com
as of July 5, 2020 7:07 am

Features

  • Compatible with all major cable internet providers: Including certification by Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service.
  • Save monthly rental fees: Model CM500 replaces your cable modem saving you up to $168/yr in equipment rental fees.
  • Built for fast speed: best for cable provider plans up to 300 mbps speed.
  • Works with any wifi router: Connect any WiFi router to this modem's Ethernet port to support all your wireless devices.
  • Ethernet connections: 1 Gigabit Ethernet port connects to your computer or separate WiFi router.

ARRIS SURFboard (24x8) DOCSIS 3.0 Cable Modem Plus AC2350 Dual Band Wi-Fi Router, approved for Cox, Spectrum, Xfinity & more (SBG7400AC2) (Renewed)

$94.99  in stock
2 new from $94.99
Free shipping
Buy Now
Amazon.com
as of July 5, 2020 7:07 am

Features

  • 3 products in 1: 24x8 Cable Modem, AC2350 Dual band Wi-Fi Router, 4 Port Gigabit Router
  • APPROVED with major U.S. Cable Providers Xfinity and Cox. Compatible with Spectrum (Time Warner, Charter and Brighthouse). REQUIRES Cable Internet Service. Not compatible with ATT, Verizon or CenturyLink
  • Cable Modem: 24 DOWNLOAD & 8 UPLOAD channels to maximize your Cable ISP service offerings. APPROVED for plans of 300 Mbps and above. Supports IPv4 and IPv6 – the latest Internet standard
  • Router: AC2300 2.4/5.0 GHz Dual-band Concurrent Wi-Fi Router with 4 Gigabit Ethernet ports. Wi-Fi beamforming – max coverage and performance
  • Security: McAfee Secure Whole Home Internet with App to monitor and configure