Modems Compatible With Xfinity(65)
Jolt Mobile 4G LTE WiFi Router Modem Combo | Wireless Home Internet Box & Mobile Hotspot Device | High-Speed WiFi for Home, Office, RV, Travel From $69.00

Jolt Mobile 4G LTE WiFi Router Modem Combo | Wireless Home Internet Box & Mobile Hotspot Device | High-Speed WiFi for Home, Office, RV, Travel
JOYTUTUS 4G LTE USB Modem Portable Router with SIM Card Slot $21.65

JOYTUTUS 4G LTE USB Modem Portable Router with SIM Card Slot
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 $119.95

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
ARRIS Surfboard SB 8200 DOCSIS 3.1 Gigabit Cable Modem, Approved for Cox, Xfinity, Spectrum & Others $165.00

ARRIS Surfboard SB 8200 DOCSIS 3.1 Gigabit Cable Modem, Approved for Cox, Xfinity, Spectrum & Others
ARRIS Surfboard (32x8) Cable Modem, DOCSIS 3.0, - New Condition $69.99 Was $88.99

ARRIS Surfboard (32x8) Cable Modem, DOCSIS 3.0, - New Condition
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 $198.99

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
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

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
Best seller, NETGEAR Nighthawk BE3100 WiFi 7 Dual-band Router (RS70) $109.00

NETGEAR Nighthawk BE3100 WiFi 7 Dual-band Router (RS70)
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
ARRIS Surfboard Cable Modem Dual-Band Wi-Fi Router DOCSIS 3.0, AC1900 (16x4) Up to 300 Mbps $102.00 Was $159.00

ARRIS Surfboard Cable Modem Dual-Band Wi-Fi Router DOCSIS 3.0, AC1900 (16x4) Up to 300 Mbps
Motorola MG7550 (16x4) Cable Modem + AC1900 Wi-Fi Router Combo, DOCSIS 3.0 , Certified for XFINITY by Comcast, Time Warner, Spectrum, Cox, & more $99.99

Motorola MG7550 (16x4) Cable Modem + AC1900 Wi-Fi Router Combo, DOCSIS 3.0 , Certified for XFINITY by Comcast, Time Warner, Spectrum, Cox, & more
ARRIS SURFboard S34 DOCSIS 3.1 Multi-Gig Cable Modem, 2.5Gbps + 1Gbps Ethernet Ports, Compatible with Xfinity, Cox & Spectrum, Next Gen Upstream $239.99

ARRIS SURFboard S34 DOCSIS 3.1 Multi-Gig Cable Modem, 2.5Gbps + 1Gbps Ethernet Ports, Compatible with Xfinity, Cox & Spectrum, Next Gen Upstream
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 (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 $69.99

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
Restored NETGEAR CM1000-100NAR Docsis 3.1 Ultra-high Speed Cable Modem Black $74.99

Restored NETGEAR CM1000-100NAR Docsis 3.1 Ultra-high Speed Cable Modem Black
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
Restored NETGEAR CM1200-100NAR Nighthawk CM1200 DOCSIS 3.1 Multi-Gig Cable Modem, Black $114.99

Restored NETGEAR CM1200-100NAR Nighthawk CM1200 DOCSIS 3.1 Multi-Gig Cable Modem, Black
ARRIS G18 AX1800 D3.1 Wi-Fi 6 Cable Modem Router $154.99

ARRIS G18 AX1800 D3.1 Wi-Fi 6 Cable Modem Router
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) $139.00

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)
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

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
ARRIS Surfboard DOCSIS 3.1 Gigabit Cable Modem and AX3000 Wi-Fi 6 Router, Black

ARRIS Surfboard DOCSIS 3.1 Gigabit Cable Modem and AX3000 Wi-Fi 6 Router, Black
ARRIS G20 AX3000 D3.1 Wi-Fi 6 Cable Modem Router $160.00 $160.00/ca

ARRIS G20 AX3000 D3.1 Wi-Fi 6 Cable Modem Router
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 $279.99 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
Deal, NETGEAR - Nighthawk AX6000 DOCSIS 3.1 Cable Modem + WiFi 6 Router, 6Gbps (CAX80) $449.00 Was $499.99

NETGEAR - Nighthawk AX6000 DOCSIS 3.1 Cable Modem + WiFi 6 Router, 6Gbps (CAX80)
Xfinity XE2-SG 2nd Generation XFI Pod Model B1A Bigger & Better with Improved Connectivity (Dual Pack) $300.00

Xfinity XE2-SG 2nd Generation XFI Pod Model B1A Bigger & Better with Improved Connectivity (Dual Pack)
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 $225.99

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
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 $259.99

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
ARRIS Surfboard SBG10 16x4 DOCSIS 3.0 Cable Modem & AC1600 Dual-Band Wi-Fi Router, Wireless $60.00

ARRIS Surfboard SBG10 16x4 DOCSIS 3.0 Cable Modem & AC1600 Dual-Band Wi-Fi Router, Wireless
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 TM822R Docsis 3.0 Xfinity Internet & Voice Cable Modem Router $79.99

Arris TM822R Docsis 3.0 Xfinity Internet & Voice Cable Modem Router
Motorola MT7711 24X8 Cable Modem plus AC1900 Dual Band WiFi Gigabit Router plus 2 Phone Lines for Comcast Xfinity $207.00

Motorola MT7711 24X8 Cable Modem plus AC1900 Dual Band WiFi Gigabit Router plus 2 Phone Lines for Comcast Xfinity
Motorola MB8600 DOCSIS 3.1 Cable Modem, 6 Gbps Max Speed. Approved for Comcast Xfinity Gigabit, Cox Gigablast, and More, Black $195.99

Motorola MB8600 DOCSIS 3.1 Cable Modem, 6 Gbps Max Speed. Approved for Comcast Xfinity Gigabit, Cox Gigablast, and More, Black
Motorola MB8600 DOCSIS 3.1 Ultra-High Speed Cable Modem | Approved for Xfinity by Comcast, Spectrum, Cox | Supports Cable Plans up to 1000 Mbps $217.10 Was $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
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 - $101.92
![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_c45abf0f-cfb5-47a1-9e6d-55825dc225bd.4646d1271226d075adfec173b735f154.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 -
Restored NETGEAR CM3000-100NAR Nighthawk CM3000 DOCSIS 3.1 Mid/high-Split Cable Modem, Up to 2.5Gbps, Black (Refurbished) $184.99

Restored NETGEAR CM3000-100NAR Nighthawk CM3000 DOCSIS 3.1 Mid/high-Split Cable Modem, Up to 2.5Gbps, Black (Refurbished)
Motorola MG7700 DOCSIS 1000 Mbps AC1900 Dual-Band WiFi Router 3.0 Modem $187.99

Motorola MG7700 DOCSIS 1000 Mbps AC1900 Dual-Band WiFi Router 3.0 Modem
Xfinity XFI POD XEI-S Extender Network Range Wifi Rented Owned Router - White $80.00

Xfinity XFI POD XEI-S Extender Network Range Wifi Rented Owned Router - White
ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem, Approved for Cox, Spectrum, Xfinity & others (White), Max Download Speed: 1.4 Gbps $89.99

ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem, Approved for Cox, Spectrum, Xfinity & others (White), Max Download Speed: 1.4 Gbps
Other options to consider(51)
FAQ
How do I use my own modem with Xfinity?
Many cable internet providers support bring-your-own modems as long as the device is approved and matches your plan. To get up and running smoothly, it helps to:
- Confirm approval: Check your provider’s compatible device list for your exact model.
- Match your speed tier: Choose DOCSIS 3.1 for gigabit or faster plans; DOCSIS 3.0 may suit lower tiers.
- Account for features: If you use provider phone service, look for a telephony-enabled model.
- Plan Wi‑Fi: Pair a standalone modem with a router/mesh, or pick an all‑in‑one gateway.
After install, activate through your provider’s app, website, or support line. On Walmart, product pages typically note provider compatibility. Policies and availability can vary by location and plan.
Buy or rent: what makes sense for Xfinity internet equipment?
Whether owning or renting is a better fit depends on how you use your home internet. Here’s a balanced view:
- Owning can reduce monthly fees: You avoid ongoing equipment charges and choose features you want.
- Considerations: There’s an upfront cost, you handle compatibility/activation, and support scope may differ.
- Gateway vs. separate setup: An all‑in‑one gateway simplifies things; a standalone modem plus a router or mesh offers upgrade flexibility and broader coverage options.
Comparing total cost and flexibility over 12–24 months can be helpful, but the right choice varies by household. On Walmart, you can review specs and compatibility details to decide which route aligns with your plan and home layout.
What should I replace an Xfinity modem with?
You’ve got two main paths: a standalone cable modem paired with a router/mesh, or an all‑in‑one gateway that combines both. Consider the following when choosing:
- Plan speed: For gigabit or multi‑gig tiers, look for DOCSIS 3.1 and faster Ethernet ports (e.g., 2.5G) to reduce bottlenecks.
- Phone service: If you have home phone through your provider, select a telephony‑enabled, provider‑approved model.
- Wi‑Fi coverage: Larger homes may benefit from a router with stronger radios or a mesh system.
- Ports and placement: Ensure enough Ethernet ports and plan cable runs for a clean install.
Always confirm approval on your provider’s compatibility list, then activate per their process. Product pages usually note compatibility to help narrow choices.
DOCSIS 3.0 vs 3.1: which should I choose?
DOCSIS is the cable standard modems use to communicate with the network. Your pick should align with your plan and future needs:
- DOCSIS 3.1: Designed for newer networks and gigabit+ speeds, with efficiency and latency improvements. It’s a practical option if you want more headroom for upgrades.
- DOCSIS 3.0: Often sufficient for many sub‑gigabit plans. If you go this route, choose enough downstream/upstream channels to match your tier and confirm provider approval.
Your provider’s approved‑device list is the final authority on compatibility. Network upgrades can vary by area, so selecting a device that supports your plan today—and likely tomorrow—can help, but availability and performance can differ by location.
How do a router and modem work together for Xfinity?
A modem and router serve different jobs in a cable setup. The modem connects to the coax line and authenticates your service; the router manages your home network and Wi‑Fi. Here’s the typical flow:
- Modem: Coax from the wall to the modem; it converts the signal to Ethernet.
- Router or mesh: Ethernet from modem to the router’s WAN port; it broadcasts Wi‑Fi and manages devices.
- Activation: Your provider enables the modem via app, web, or support.
If you prefer one device, a gateway combines both roles. Otherwise, a separate modem plus router offers more flexibility to upgrade Wi‑Fi without changing the modem. Check product pages for compatibility details.
Popular in Modems Compatible with Xfinity Internet
Related Products
NETGEAR CM1000-100NAR Docsis 3.1 Ultra-high Speed Cable Modem Black
NETGEAR CM1000-100NAR Docsis 3.1 Ultra-high Speed Cable Modem Black$74.99current price $74.99Arris SURFboard SBG6580 - Wireless router - cable modem - 4-port switch - GigE - 802.11a/b/g/n - Dual Band
Arris SURFboard SBG6580 - Wireless router - cable modem - 4-port switch - GigE - 802.11a/b/g/n - Dual Band$119.99current price $119.99Restored NETGEAR CM3000-100NAR Nighthawk CM3000 DOCSIS 3.1 Mid/high-Split Cable Modem, Up to 2.5Gbps, Black (Refurbished)
Restored NETGEAR CM3000-100NAR Nighthawk CM3000 DOCSIS 3.1 Mid/high-Split Cable Modem, Up to 2.5Gbps, Black (Refurbished)$184.99current price $184.99Motorola 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
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$279.99current price $279.99Motorola MG7700 DOCSIS 1000 Mbps AC1900 Dual-Band WiFi Router 3.0 Modem
Motorola MG7700 DOCSIS 1000 Mbps AC1900 Dual-Band WiFi Router 3.0 Modem$187.99current price $187.99
