Cox Approved Modems(56)
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 $112.99

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 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 DOCSIS 3.1 Multi-Gigabit Cable Modem with 2.5 Gbps Ethernet Port, Approved for Cox, Xfinity, Spectrum and Others, Wireless Technology - New Condition $198.95

ARRIS Surfboard DOCSIS 3.1 Multi-Gigabit Cable Modem with 2.5 Gbps Ethernet Port, Approved for Cox, Xfinity, Spectrum and Others, Wireless Technology - New Condition
ARRIS Surfboard SB 8200 DOCSIS 3.1 Gigabit Cable Modem, Approved for Cox, Xfinity, Spectrum & Others $149.99

ARRIS Surfboard SB 8200 DOCSIS 3.1 Gigabit Cable Modem, Approved for Cox, Xfinity, Spectrum & Others
TP-Link DOCSIS 3.0 (8x4) High Speed Cable Modem Max Download Speeds Up to 343Mbps Certified for Xfinity, Spectrum, Cox, and more (TC-7610W) $39.99 Was $54.49

TP-Link DOCSIS 3.0 (8x4) High Speed Cable Modem Max Download Speeds Up to 343Mbps Certified for Xfinity, Spectrum, Cox, and more (TC-7610W)
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 $219.99 Was $248.00

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 (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 $80.00

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
50+ bought since yesterday 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 $149.00

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
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
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 $169.95

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
NETGEAR - Nighthawk AX6000 DOCSIS 3.1 Cable Modem + WiFi 6 Router, 6Gbps (CAX80) $499.99

NETGEAR - Nighthawk AX6000 DOCSIS 3.1 Cable Modem + WiFi 6 Router, 6Gbps (CAX80)
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 $56.99 Was $69.00

ARRIS SURFboard (16x4) DOCSIS 3.0 Cable Modem. Approved for XFINITY Comcast, Cox, Charter and most other Cable Internet providers for plans up to 300 Mbps (SB6183), White
Motorola MB8600 DOCSIS 3.1 Ultra-High Speed Cable Modem | Approved for Xfinity by Comcast, Spectrum, Cox | Supports Cable Plans up to 1000 Mbps

Motorola MB8600 DOCSIS 3.1 Ultra-High Speed Cable Modem | Approved for Xfinity by Comcast, Spectrum, Cox | Supports Cable Plans up to 1000 Mbps
ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem, Approved for Cox, Spectrum, Xfinity & others (White), Max Download Speed: 1.4 Gbps $72.00

ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem, Approved for Cox, Spectrum, Xfinity & others (White), Max Download Speed: 1.4 Gbps
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)
Motorola MB8600 DOCSIS 3.1 Cable Modem, 6 Gbps Max Speed. Approved for Comcast Xfinity Gigabit, Cox Gigablast, and More, Black $209.98

Motorola MB8600 DOCSIS 3.1 Cable Modem, 6 Gbps Max Speed. Approved for Comcast Xfinity Gigabit, Cox Gigablast, and More, Black
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 MB7621 Cable Modem, DOCSIS 3.0 - Pairs with Any Wi-Fi Router Approved by Comcast Xfinity, Cox, and Spectrum 1000 Mbps Max Speed

MOTOROLA MB7621 Cable Modem, DOCSIS 3.0 - Pairs with Any Wi-Fi Router Approved by Comcast Xfinity, Cox, and Spectrum 1000 Mbps Max Speed
Pre-Owned Arris SB6190 DOCSIS 3.0 High-Speed Cable Modem for Xfinity Cox Spectrum - White $39.99

Pre-Owned Arris SB6190 DOCSIS 3.0 High-Speed Cable Modem for Xfinity Cox Spectrum - White
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) $114.00 Was $145.97

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)
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 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
Motorola MG7700 Modem WiFi Router Combo with Power Boost | Approved by Comcast Xfinity, Cox and Spectrum | for Cable Plans Up to 800 Mbps | DOCSIS 3.0 + Gigabit Router

Motorola MG7700 Modem WiFi Router Combo with Power Boost | Approved by Comcast Xfinity, Cox and Spectrum | for Cable Plans Up to 800 Mbps | DOCSIS 3.0 + Gigabit Router
ZyXEL C3000Z Modem CenturyLink $99.99 Was $154.99

ZyXEL C3000Z Modem CenturyLink
ARRIS SURFboard SBG8300 DOCSIS 3.1 Gigabit Cable Modem & AC2350 Wi-Fi Router | Comcast Xfinity, Cox, Spectrum & more | Four 1 Gbps Ports | 1 Gbps Max Internet Speeds | 4 OFDM Channels 2 Year Warranty $249.99

ARRIS SURFboard SBG8300 DOCSIS 3.1 Gigabit Cable Modem & AC2350 Wi-Fi Router | Comcast Xfinity, Cox, Spectrum & more | Four 1 Gbps Ports | 1 Gbps Max Internet Speeds | 4 OFDM Channels 2 Year Warranty
ARRIS SURFboard DOCSIS 3.0 Cable Modem SB6190 $79.99 Was $99.00

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 MG8702 DOCSIS 3.1 Cable Modem Wi-Fi Router with Intelligent Power Boost AC3200 Wi-Fi Speed

Motorola MG8702 DOCSIS 3.1 Cable Modem Wi-Fi Router with Intelligent Power Boost AC3200 Wi-Fi Speed
ARRIS Surfboard 32x8 DOCSIS 3.1 Cable Modem & AC2350 Dual-Band Wi-Fi Router, Wireless Technology - New Condition $215.00

ARRIS Surfboard 32x8 DOCSIS 3.1 Cable Modem & AC2350 Dual-Band Wi-Fi Router, Wireless Technology - New Condition
Xfinity Docsis 3.0 Cable Modem Works with Comcast, XB6-T $99.00

Xfinity Docsis 3.0 Cable Modem Works with Comcast, XB6-T
ARRIS Surfboard SBG10 16x4 DOCSIS 3.0 Cable Modem & AC1600 Dual-Band Wi-Fi Router, Wireless $70.00

ARRIS Surfboard SBG10 16x4 DOCSIS 3.0 Cable Modem & AC1600 Dual-Band Wi-Fi Router, Wireless
Arris SVG2482AC-RB Surfboard DOCSIS 3.0 Cable Modem & AC2350 Wi-Fi Router $109.99

Arris SVG2482AC-RB Surfboard DOCSIS 3.0 Cable Modem & AC2350 Wi-Fi Router
Arris G36 SURFboard DOCSIS 3.1 Gigabit Modem & Wi-Fi 6 Router $245.99 Was $284.95

Arris G36 SURFboard DOCSIS 3.1 Gigabit Modem & Wi-Fi 6 Router
Motorola MG7540 Cable Modem AC1600 Dual Band Wi-Fi Router Combo DOCSIS 3.0 Certified by Comcast $199.70

Motorola MG7540 Cable Modem AC1600 Dual Band Wi-Fi Router Combo DOCSIS 3.0 Certified by Comcast
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
ARRIS CM820A Cable Modem DOCSIS 3.0 (Latest Version - 1 Step Activation) $49.99

ARRIS CM820A Cable Modem DOCSIS 3.0 (Latest Version - 1 Step Activation)
ARRIS SVG2482AC AC1750 Surfboard DOCSIS 3.0 Cable Modem Gateway Router $149.99

ARRIS SVG2482AC AC1750 Surfboard DOCSIS 3.0 Cable Modem Gateway Router
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
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
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.
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