Cox Approved Modems(51)
In 50+ people's carts NETGEAR Nighthawk Cable Modem and WiFi 5 Router Combo (C7000) - Compatible with All Major Cable Providers incl. Xfinity & Cox - Cable Plans up to 800Mbps - AC1900 (Up to 1.9Gbps) - DOCSIS 3.0 $109.00 Was $192.00

NETGEAR Nighthawk Cable Modem and WiFi 5 Router Combo (C7000) - Compatible with All Major Cable Providers incl. Xfinity & Cox - Cable Plans up to 800Mbps - AC1900 (Up to 1.9Gbps) - DOCSIS 3.0
Best seller NETGEAR Ultra-High Speed Cable Modem DOCSIS 3.1 for XFINITY from Comcast, Spectrum & Cox (CM1000-100NAS) $199.00

NETGEAR Ultra-High Speed Cable Modem DOCSIS 3.1 for XFINITY from Comcast, Spectrum & Cox (CM1000-100NAS)
ARRIS Surfboard 16x4 Cable Modem / AC1600 Dual-Band Wifi Router. Approved for Xfinity Comcast, Cox, Charter and Most Other Cable Internet Providers, Wireless Technology - New Condition $99.66

ARRIS Surfboard 16x4 Cable Modem / AC1600 Dual-Band Wifi Router. Approved for Xfinity Comcast, Cox, Charter and Most Other Cable Internet Providers, Wireless Technology - New Condition
Best seller NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM2500-1AZNAS) Approved for Todays Faster Speeds - Works With all Cable Providers Incl. Xfinity, Spectrum, Cox - Cable Plans up to 2Gbps $197.00 Was $219.99

NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM2500-1AZNAS) Approved for Todays Faster Speeds - Works With all Cable Providers Incl. Xfinity, Spectrum, Cox - Cable Plans up to 2Gbps
ARRIS Surfboard DOCSIS 3.1 Gigabit Cable Modem and AX3000 Wi-Fi 6 Router, Approved for Cox, Spectrum, Xfinity and Others, Wireless Technology - New Condition

ARRIS Surfboard DOCSIS 3.1 Gigabit Cable Modem and AX3000 Wi-Fi 6 Router, Approved for Cox, Spectrum, Xfinity and Others, Wireless Technology - New Condition
ARRIS Surfboard (16x4) DOCSIS 3.0 Cable Modem. Approved for Xfinity Comcast, Cox, Charter and Most Other Cable Internet Providers for Plans up to 400 Mbps. - New Condition $65.00

ARRIS Surfboard (16x4) DOCSIS 3.0 Cable Modem. Approved for Xfinity Comcast, Cox, Charter and Most Other Cable Internet Providers for Plans up to 400 Mbps. - New Condition
Motorola MG7550 (16x4) Cable Modem + AC1900 Wi-Fi Router Combo, DOCSIS 3.0 , Certified for XFINITY by Comcast, Time Warner, Spectrum, Cox, & more $99.00

Motorola MG7550 (16x4) Cable Modem + AC1900 Wi-Fi Router Combo, DOCSIS 3.0 , Certified for XFINITY by Comcast, Time Warner, Spectrum, Cox, & more
NETGEAR - Nighthawk AX6000 DOCSIS 3.1 Cable Modem + WiFi 6 Router, 6Gbps (CAX80) $499.00

NETGEAR - Nighthawk AX6000 DOCSIS 3.1 Cable Modem + WiFi 6 Router, 6Gbps (CAX80)
Motorola MG8702 | DOCSIS 3.1 Cable Modem + Wi-Fi Router (High Speed Combo) with Intelligent Power Boost | AC3200 Wi-Fi Speed | Approved for Comcast Xfinity, Cox, and Charter Spectrum $209.99 Was $299.00

Motorola MG8702 | DOCSIS 3.1 Cable Modem + Wi-Fi Router (High Speed Combo) with Intelligent Power Boost | AC3200 Wi-Fi Speed | Approved for Comcast Xfinity, Cox, and Charter Spectrum
Best seller NETGEAR Nighthawk AX2700 DOCSIS 3.1 + WiFi 6 Router, 2.7Gbps (CAX30) $298.00

NETGEAR Nighthawk AX2700 DOCSIS 3.1 + WiFi 6 Router, 2.7Gbps (CAX30)
ARRIS Surfboard Cable Modem Dual-Band Wi-Fi Router DOCSIS 3.0, AC1900 (16x4) Up to 300 Mbps $89.00 Was $159.00

ARRIS Surfboard Cable Modem Dual-Band Wi-Fi Router DOCSIS 3.0, AC1900 (16x4) Up to 300 Mbps
ARRIS SURFboard (16x4) DOCSIS 3.0 Cable Modem. Approved for XFINITY Comcast, Cox, Charter and most other Cable Internet providers for plans up to 300 Mbps (SB6183), White $51.54 Was $59.99

ARRIS SURFboard (16x4) DOCSIS 3.0 Cable Modem. Approved for XFINITY Comcast, Cox, Charter and most other Cable Internet providers for plans up to 300 Mbps (SB6183), White
Arris S33-RB Surfboard DOCSIS 3.1 Multi-Gigabit Cable Modem $129.99

Arris S33-RB Surfboard DOCSIS 3.1 Multi-Gigabit Cable Modem
Motorola B12 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast Xfinity, Cox Gigablast, Spectrum | 2.5 Gbps Port | 2500 Mbps Max Internet Speeds

Motorola B12 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast Xfinity, Cox Gigablast, Spectrum | 2.5 Gbps Port | 2500 Mbps Max Internet Speeds
ARRIS SURFboard (24x8) DOCSIS 3.0 Cable Modem / AC2350 Dual-Band WiFi Router. Approved for XFINITY Comcast, Cox, Charter and most other Cable Internet providers for plans up to 600 Mbps. (SBG7400AC2) $141.00

ARRIS SURFboard (24x8) DOCSIS 3.0 Cable Modem / AC2350 Dual-Band WiFi Router. Approved for XFINITY Comcast, Cox, Charter and most other Cable Internet providers for plans up to 600 Mbps. (SBG7400AC2)
ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem, Approved for Cox, Spectrum, Xfinity & others (White), Max Download Speed: 1.4 Gbps $85.50

ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem, Approved for Cox, Spectrum, Xfinity & others (White), Max Download Speed: 1.4 Gbps
Motorola MB8600 DOCSIS 3.1 Cable Modem, 6 Gbps Max Speed. Approved for Comcast Xfinity Gigabit, Cox Gigablast, and More, Black $209.99

Motorola MB8600 DOCSIS 3.1 Cable Modem, 6 Gbps Max Speed. Approved for Comcast Xfinity Gigabit, Cox Gigablast, and More, Black
Restored NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM2500) $148.99

Restored NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM2500)
Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast Xfinity, Cox Gigablast, Spectrum | 2.5 Gbps Port | 2500 Mbps Max Internet Speeds $399.00

Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast Xfinity, Cox Gigablast, Spectrum | 2.5 Gbps Port | 2500 Mbps Max Internet Speeds
Motorola MB8600 DOCSIS 3.1 Ultra-High Speed Cable Modem | Approved for Xfinity by Comcast, Spectrum, Cox | Supports Cable Plans up to 1000 Mbps $249.99

Motorola MB8600 DOCSIS 3.1 Ultra-High Speed Cable Modem | Approved for Xfinity by Comcast, Spectrum, Cox | Supports Cable Plans up to 1000 Mbps
Pre-Owned ARRIS SURFboard DOCSIS 3.0 Cable Modem SB6190 $69.99 Was $99.00

Pre-Owned ARRIS SURFboard DOCSIS 3.0 Cable Modem SB6190
Restored NETGEAR Nighthawk AC1900 (24x8) DOCSIS 3.0 WiFi Cable Modem Router Combo (C7000) for Xfinity from Comcast, Spectrum, Cox, more (Refurbished) $105.49

Restored NETGEAR Nighthawk AC1900 (24x8) DOCSIS 3.0 WiFi Cable Modem Router Combo (C7000) for Xfinity from Comcast, Spectrum, Cox, more (Refurbished)
Motorola MG8725 Multi-Gig Cable Modem + Built in WiFi 6 Router | Approved for Comcast Xfinity Gigabit, Cox Gigablast, Spectrum | Plans Up to 6000 Mbps | DOCSIS 3.1 | AX6000 | Motosync App $199.99 Was $317.79

Motorola MG8725 Multi-Gig Cable Modem + Built in WiFi 6 Router | Approved for Comcast Xfinity Gigabit, Cox Gigablast, Spectrum | Plans Up to 6000 Mbps | DOCSIS 3.1 | AX6000 | Motosync App
Xfinity Docsis 3.0 Cable Modem Works with Comcast, XB6-T $99.00

Xfinity Docsis 3.0 Cable Modem Works with Comcast, XB6-T
Motorola MG7540 Cable Modem AC1600 Dual Band Wi-Fi Router Combo DOCSIS 3.0 Certified by Comcast $199.71

Motorola MG7540 Cable Modem AC1600 Dual Band Wi-Fi Router Combo DOCSIS 3.0 Certified by Comcast
ARRIS CM820A Cable Modem DOCSIS 3.0 (Latest Version - 1 Step Activation) $55.99

ARRIS CM820A Cable Modem DOCSIS 3.0 (Latest Version - 1 Step Activation)
ARRIS CM820A Cable Modem DOCSIS 3.0 (Latest Version - 1 Step Activation) $48.79

ARRIS CM820A Cable Modem DOCSIS 3.0 (Latest Version - 1 Step Activation)
Arris G36 SURFboard DOCSIS 3.1 Gigabit Modem & Wi-Fi 6 Router $355.00

Arris G36 SURFboard DOCSIS 3.1 Gigabit Modem & Wi-Fi 6 Router
ARRIS (SB6190-RB) - Cable Modem - DOCSIS 3.0 32x8 Gigabit Modem, [Check with your provider for compatibility]1 Gbps Port, 800 Mbps Max Speed, 2 Year Warranty $44.18
![ARRIS (SB6190-RB) - Cable Modem - DOCSIS 3.0 32x8 Gigabit Modem, [Check with your provider for compatibility]1 Gbps Port, 800 Mbps Max Speed, 2 Year Warranty](https://i5.walmartimages.com/seo/ARRIS-SB6190-RB-Cable-Modem-DOCSIS-3-0-32x8-Gigabit-Modem-Check-provider-compatibility-1-Gbps-Port-800-Mbps-Max-Speed-2-Year-Warranty_e0051db4-9a63-4b2c-a877-3e528fbd4851.f25b7888180787ec90e3f32d3b707e34.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
ARRIS (SB6190-RB) - Cable Modem - DOCSIS 3.0 32x8 Gigabit Modem, [Check with your provider for compatibility]1 Gbps Port, 800 Mbps Max Speed, 2 Year Warranty
Motorola MT7711 24X8 Cable Modem plus AC1900 Dual Band WiFi Gigabit Router plus 2 Phone Lines for Comcast Xfinity $249.99

Motorola MT7711 24X8 Cable Modem plus AC1900 Dual Band WiFi Gigabit Router plus 2 Phone Lines for Comcast Xfinity
Arris Touchstone TM822G DOCSIS 3.0 8x4 Ultra-High Speed Telephony Modem $79.99

Arris Touchstone TM822G DOCSIS 3.0 8x4 Ultra-High Speed Telephony Modem
Motorola 8x4 343 Mbps DOCSIS 3.0 N300 Cable Modem with Wi-Fi Gigabit Router NEW $139.99

Motorola 8x4 343 Mbps DOCSIS 3.0 N300 Cable Modem with Wi-Fi Gigabit Router NEW
686 MBPS DOCSIS 3.0 CABLE MODEM TIME WARNER COMCAST APPRVD 2YR WARR $69.99 77.7 ¢/ea

686 MBPS DOCSIS 3.0 CABLE MODEM TIME WARNER COMCAST APPRVD 2YR WARR
Arris G34 SURFboard DOCSIS 3.1 Gigabit Modem & Wi-Fi 6 Router $189.99

Arris G34 SURFboard DOCSIS 3.1 Gigabit Modem & Wi-Fi 6 Router
Zoom 5341 DOCSIS 3.0 Cable Modem $69.50

Zoom 5341 DOCSIS 3.0 Cable Modem
Pre-Owned Technicolor Docsis 3.1 Voice Internet Cable Modem (Does not Have Built in Wireless) E31T2V1 $69.99

Pre-Owned Technicolor Docsis 3.1 Voice Internet Cable Modem (Does not Have Built in Wireless) E31T2V1
Pre-Owned ARRIS Touchstone TM1602A DOCSIS 3.0 Telephony Modem - 960 Mbps $49.99

Pre-Owned ARRIS Touchstone TM1602A DOCSIS 3.0 Telephony Modem - 960 Mbps
ARRIS (SB6190-RB) - Cable Modem DOCSIS 3.0 32x8 Gigabit Modem [Check with your provider for compatibility]1 Gbps Port 800 Mbps Max Speed 2 Year Warranty $44.18
![ARRIS (SB6190-RB) - Cable Modem DOCSIS 3.0 32x8 Gigabit Modem [Check with your provider for compatibility]1 Gbps Port 800 Mbps Max Speed 2 Year Warranty](https://i5.walmartimages.com/seo/ARRIS-SB6190-RB-Cable-Modem-DOCSIS-3-0-32x8-Gigabit-Modem-Check-provider-compatibility-1-Gbps-Port-800-Mbps-Max-Speed-2-Year-Warranty_658c424b-a7af-454d-94c6-c24392752fe1.a90d7995c8176cb549dbd07e566174ed.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
ARRIS (SB6190-RB) - Cable Modem DOCSIS 3.0 32x8 Gigabit Modem [Check with your provider for compatibility]1 Gbps Port 800 Mbps Max Speed 2 Year Warranty
Ultra-High Speed Cable Modem $245.73

Ultra-High Speed Cable Modem
Motorola MG7700 Modem with AC1900 Dual Band 1000 Mbps Wi-Fi Gigabit Router with Power Boost $199.90

Motorola MG7700 Modem with AC1900 Dual Band 1000 Mbps Wi-Fi Gigabit Router with Power Boost
FAQ
Which modems work best with Cox internet?
Choosing a good fit comes down to compatibility and speed needs.
- Check approval: Look for “approved for Cox” in the product details and confirm on your provider’s compatibility page.
- Match your plan: DOCSIS 3.0 (16x4/24x8/32x8) can suit lower tiers, while DOCSIS 3.1 is typically recommended for gigabit plans and beyond.
- Think ahead: For multi‑gig plans, a modem with a 2.5G Ethernet port and OFDM/OFDMA support can help reduce bottlenecks. In some areas, mid/high‑split readiness may support enhanced upstream profiles.
- Choose the right type: Make sure it’s a cable modem (not DSL or fiber).
- Decide on form factor: A combo (modem + Wi‑Fi) simplifies setup; a standalone modem offers more flexibility.
You’ll find a range of compatible options on this page.
How do I use my own modem with Cox?
You can often use a customer‑owned cable modem if it’s compatible. Here’s a general approach:
- Verify compatibility: Check the device is listed as “approved for Cox” and supports your plan’s speed.
- Connect hardware: Attach the coax cable to the modem, plug in power, and wait for status lights to stabilize.
- Add Wi‑Fi (if needed): Connect a separate router via Ethernet, or use a modem‑router combo’s built‑in Wi‑Fi.
- Activate service: Use your provider’s activation page or app. You may need the modem’s MAC/serial from the label and your account details.
- Test and fine‑tune: Run a wired speed check and adjust placement or settings as needed.
Activation steps can vary by area and plan. If anything stalls, contacting your provider’s support can help complete setup.
What router should I pair with Cox service?
Pick a router that matches your speed, home size, and devices.
- Speed headroom: Choose a router with a WAN port that meets or exceeds your plan (gigabit or multi‑gig) to avoid bottlenecks.
- Wi‑Fi standard: Wi‑Fi 6 or newer can offer better capacity for busy homes; dual‑ or tri‑band helps when lots of devices share the network.
- Coverage needs: For larger or multi‑story homes, consider a mesh system for more consistent coverage.
- Features: Look for security updates, parental controls, and QoS to prioritize streaming or gaming.
- Combo vs. separate: A modem‑router combo simplifies setup, while a standalone router gives you upgrade flexibility.
Pairing the right router with a compatible cable modem can help you get more from your plan.
What modem tech should I get for Cox?
Focus on standards and ports that align with your plan and future needs.
- DOCSIS 3.1 for high speeds: Typically recommended for gigabit and multi‑gig tiers, with OFDM/OFDMA support for improved efficiency.
- DOCSIS 3.0 for basics: Often suitable for lower‑speed plans; look for 16x4, 24x8, or 32x8 channel bonding based on your tier.
- Multi‑gig readiness: A 2.5G Ethernet port can reduce LAN‑side bottlenecks on faster plans.
- Upstream upgrades: In areas moving to mid/high‑split, a modem that supports those profiles may help with enhanced upload capacity.
- Provider approval: Always confirm the model is “approved for Cox” before purchasing.
These considerations can help you choose tech that fits today and leaves room for tomorrow.
How do I set up a Cox‑approved modem?
Setup is generally straightforward and can be done in a few steps.
- Position the modem: Place it near a coax outlet with good ventilation.
- Connect coax and power: Hand‑tighten the coax cable, plug in power, and wait for the lights to indicate readiness.
- Add your router: Connect a router via Ethernet, or use the combo’s Wi‑Fi. Name your network and set a strong password.
- Activate service: Go to your provider’s activation page or app. You may need the modem’s MAC/serial from the label and your account info.
- Verify performance: Test with a wired device, then fine‑tune Wi‑Fi placement for coverage.
Steps can vary by area and equipment. If activation doesn’t complete, checking your cables and contacting your provider can help.
Popular in Cox Approved Modems for Cable Internet
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