10 Best Xfinity Modem Cm2500 of 2025

Tested and Reviewed: Top 10 Xfinity Modem Cm2500 deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

NETGEAR

NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM2500) – Approved for Today’s Faster Speeds & Compatible with All Providers Incl. Xfinity, Spectrum, Cox - for Plans up to 2Gbps (Renewed)

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Editor's bottom line:

“This xfinity modem cm2500 is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Mid/high-split DOCSIS 3.1 cable modem delivers up to 2Gbps of download speeds and 1Gbps of upload speeds
Unlock faster cable internet speeds, such as Xfinitys 900Mbps download speeds and 100Mbps upload speeds. Works with all major US internet providers. Not compatible with Xfinity Voice plans
Faster download speeds powers your digital lifestyle with enhanced speed, capacity, efficiency, and response times
10x faster upload speeds for seamless multi-family gaming, video conferencing and uploading even the largest filessimultaneously. Plus provides easy remote access to your home security cameras and files on your NAS
For the ultimate in performance, link a NETGEAR WiFi 6E or WiFi 7 router or Orbi system to the CM2500 cable modem
Stay ahead of future internet speeds with our mid/high-split DOCSIS 3.1 cable modem for much higher performance levels
Stay ahead of future internet speeds with our mid/high-split DOCSIS 3.1 cable modem for much higher performance levels
Connect the two Gigabit ports to a router with link aggregation for up to 2Gbps
Made for use in the US only

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Picked by 397 people today

9.5

NETGEAR

NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM2500-1AZNAS) – Approved for Today’s Faster Speeds - Works with All Cable Providers Incl. Xfinity, Spectrum, Cox - Plans up to 2Gbps

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Main Highlights

Mid/high-split DOCSIS 3.1 cable modem delivers up to 2Gbps of download speeds and 1Gbps of upload speeds
Unlock faster cable internet speeds, such as Xfinitys 900Mbps download speeds and 100Mbps upload speeds. Works with all major US internet providers. Not compatible with Xfinity Voice plans
Faster download speeds powers your digital lifestyle with enhanced speed, capacity, efficiency, and response times
10x faster upload speeds for seamless multi-family gaming, video conferencing and uploading even the largest filessimultaneously. Plus provides easy remote access to your home security cameras and files on your NAS
For the ultimate in performance, link a NETGEAR WiFi 6E or WiFi 7 router or Orbi system to the CM2500 cable modem
Stay ahead of future internet speeds with our mid/high-split DOCSIS 3.1 cable modem for much higher performance levels
Save up to dollar 300 a year in ISP rental fees by owning this high-performance modem
Connect the two Gigabit ports to a router with link aggregation for up to 2Gbps
Made for use in the US only

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9.5

NETGEAR

NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM2500-1AZNAS) – Approved for Today’s Faster Speeds - Works with All Cable Providers Incl. Xfinity, Spectrum, Cox - Plans up to 2Gbps (Renewed)

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Main Highlights

Mid/high-split DOCSIS 3.1 cable modem delivers up to 2Gbps of download speeds and 1Gbps of upload speeds
Unlock faster cable internet speeds, such as Xfinitys 900Mbps download speeds and 100Mbps upload speeds. Works with all major US internet providers. Not compatible with Xfinity Voice plans
Faster download speeds powers your digital lifestyle with enhanced speed, capacity, efficiency, and response times
10x faster upload speeds for seamless multi-family gaming, video conferencing and uploading even the largest filessimultaneously. Plus provides easy remote access to your home security cameras and files on your NAS
For the ultimate in performance, link a NETGEAR WiFi 6E or WiFi 7 router or Orbi system to the CM2500 cable modem
Stay ahead of future internet speeds with our mid/high-split DOCSIS 3.1 cable modem for much higher performance levels
Save up to dollar 300 a year in ISP rental fees by owning this high-performance modem
Connect the two Gigabit ports to a router with link aggregation for up to 2Gbps

Show Price

9.2

NETGEAR

NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM2500) – Approved for Today’s Faster Speeds & Compatible with All Providers Incl. Xfinity, Spectrum, Cox - for Plans up to 2Gbps

Free Shipping

Main Highlights

Mid/high-split DOCSIS 3.1 cable modem delivers up to 2Gbps of download speeds and 1Gbps of upload speeds
Unlock faster cable internet speeds, such as Xfinitys 900Mbps download speeds and 100Mbps upload speeds. Works with all major US internet providers. Not compatible with Xfinity Voice plans
Faster download speeds powers your digital lifestyle with enhanced speed, capacity, efficiency, and response times
10x faster upload speeds for seamless multi-family gaming, video conferencing and uploading even the largest filessimultaneously. Plus provides easy remote access to your home security cameras and files on your NAS
For the ultimate in performance, link a NETGEAR WiFi 6E or WiFi 7 router or Orbi system to the CM2500 cable modem
Stay ahead of future internet speeds with our mid/high-split DOCSIS 3.1 cable modem for much higher performance levels
Save up to $300 a year in ISP rental fees by owning this high-performance modem
Connect the two Gigabit ports to a router with link aggregation for up to 2Gbps
Made for use in the US only

Show Price

9.0

NETGEAR

NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM3000-1AZNAS) – Approved for Today’s Fastest Speeds - Works With all Cable Providers, Incl. Xfinity, Spectrum, Cox - Cable Plans up to 2.5Gbps

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Main Highlights

Mid/high-split DOCSIS 3.1 cable modem delivers up to 2.5Gbps of download speeds and 1Gbps of upload speeds, works with your existing WiFi Router (separate unit)
Specifically engineered for todays fastest DOCSIS 3.1 cable internet speeds that can only be accessed with mid/high-split technology, such as Xfinitys 2Gbps download speeds and 200Mbps upload speeds. Works with all major US internet providers
Blazing-fast download speeds powers your digital lifestyle with enhanced speed, capacity, efficiency, and response times
Impressive 10x faster upload speeds delivers seamless multi-family gaming, video conferencing and uploading large filessimultaneously. Plus provides easy remote access to your home security cameras and NAS files
For the ultimate in performance, link a NETGEAR WiFi 6E or WiFi 7 router or Orbi system (separate existing product) to this CM3000 cable modem
Be ready for future Internet speeds with much higher performance levels
Save up to dollar 300 a year in ISP rental fees by owning this high-performance modem
Connect for multi-gig Internet speed by plugging your routers multi-gig Internet port directly into the modems 2.5Gig port. Or connect the two Gigabit ports to a router with link aggregation for up to 2Gbps
Made for use in the U.S. only

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8.8

NETGEAR

NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM3000) – Approved for Today’s Fastest Speeds - Works with All Providers Incl. Xfinity, Spectrum, Cox - for Plans up to 2.5Gbps

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Main Highlights

Mid/high-split DOCSIS 3.1 cable modem delivers up to 2.5Gbps of download speeds and 1Gbps of upload speeds
Specifically engineered for todays fastest DOCSIS 3.1 cable internet speeds that can only be accessed with mid/high-split technology, such as Xfinitys 2Gbps download speeds and 200Mbps upload speeds. Works with all major US internet providers
Blazing-fast download speeds powers your digital lifestyle with enhanced speed, capacity, efficiency, and response times
Impressive 10x faster upload speeds delivers seamless multi-family gaming, video conferencing and uploading large filessimultaneously. Plus provides easy remote access to your home security cameras and NAS files
For the ultimate in performance, link a NETGEAR WiFi 6E or WiFi 7 router or Orbi system to the CM3000 cable modem
Be ready for future Internet speeds with much higher performance levels
Save up to $300 a year in ISP rental fees by owning this high-performance modem
Connect for multi-gig Internet speed by plugging your routers multi-gig Internet port directly into the modems 2.5Gig port. Or connect the two Gigabit ports to a router with link aggregation for up to 2Gbps
Made for use in the US only

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8.6

NETGEAR

NETGEAR Nighthawk Modem Router Combo (CAX30) DOCSIS 3.1 Cable Modem and WiFi 6 Router - AX2700 2.7 Gbps - Compatible with Xfinity, Spectrum, Cox, and More - Gigabit Wireless Internet

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Main Highlights

Compatible with major cable internet providers including Xfinity, Spectrum, Cox and more. NOT compatible with Verizon, AT and T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service.
Coverage up to 2,000 sq. ft. and 25 concurrent devices with dual-band WiFi 6 (AX2700) speed
4 X 1 Gig Ethernet ports (supports port aggregation) and 1 USB 3.0 port for computers, game consoles, streaming players, storage drive, and other wired devices
Replaces your cable modem and WiFi router. Save up to dollar 168/yr in equipment rental fees
DOCSIS 3.1 and 32x8 channel bonding
NETGEAR Armor provides a powerful suite of tools to help keep you safe online, including enhanced protection against hackers, malware and identity theft, at home or on the go. Includes 30-day trial
NETGEAR devices come with security measures built in as well as enhanced safety features and updates designed to help protect you and your family
Easily set up and manage your WiFi with the Nighthawk app

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8.3

ARRIS

ARRIS SURFboard SB8200 DOCSIS 3.1 Multi‑Gig Cable Modem | 2 -1Gbps Ethernet Ports | Works with Xfinity, Cox, Spectrum | For Cable Internet Plans up to 2Gbps | Modem Only, Router Required

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Main Highlights

MultiGig speed for today & tomorrow: DOCSIS 3.1 performance supports cable internet plans up to 2 Gbps, delivering ultrafast streaming, gaming, and downloads.
Save on rental fees: Own your modem and avoid monthly equipment chargescheck with your cable provider for plan compatibility.
Compact, modern design: Spacesaving footprint with discrete LED indicators for power, upstream/downstream, and online status.
Easy setup: Connect cable, power on, and activate with your cable provider. Then connect a WiFi router to the Ethernet port for home Wi-Fi coverage.
Modem only: This cable modem requires a separate Wi-Fi router or mesh system for home Wi-Fi network.
Fast Ethernet: Provides two 1 Gigabit Ethernet ports to support connecting to Wi-Fi routers.
Provider compatibility: All SURFboard modems are CableLabs certified to work across major US Internet Service Providers. Tested and qualifiedfor use with Cox, Xfinity, and Spectrum.Check with your provider to confirmdevice modelsupport.
Not compatible with fiber, DSL, or satellite services.

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8.1

Hitron

Hitron CODA56 Cable Internet Modem ONLY - DOCSIS 3.1 | 2.5 Gbps | NO WiFi - Requires Router | Xfinity/Spectrum/Cox Compatible | NOT for Fiber/DSL

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Main Highlights

CABLE INTERNET ONLY - NOT COMPATIBLE WITH: Fiber (Verizon FiOS, AT&T), DSL, Satellite, or Fixed Wireless. ONLY works with cable providers like Xfinity, Spectrum, Cox. Verify your internet type BEFORE purchase.
NO WiFi INCLUDED - ROUTER REQUIRED: This is a modem ONLY. You MUST buy a separate WiFi router to get wireless internet. Without a router, only ONE device can connect via Ethernet cable. This does NOT replace your current WiFi router.
CABLE INTERNET REQUIRED: Works EXCLUSIVELY with cable internet service (DOCSIS) from providers like Xfinity, Spectrum, or Cox. Will NOT work with fiber (Verizon FiOS, AT&T), DSL, satellite, or fixed wireless internet. Contact your ISP to confirm compatibility BEFORE purchasing.
MULTI-GIG PERFORMANCE: Supports internet plans up to 2.5 Gbps with 2.5 Gbps Ethernet port. Designed for plans 1 Gbps and faster from certified providers: Xfinity (up to 2.33 Gbps), Spectrum (1 Gbps), Cox (2 Gbps). Verify your plan speed and provider compatibility.
SETUP REQUIREMENTS: You need: (1) Cable internet service, (2) Separate WiFi router with 2.5 Gbps port for full speeds, (3) ISP activation. This modem cannot create WiFi networks or connect multiple devices without additional equipment.
GAMING & STREAMING OPTIMIZED: DOCSIS 3.1 technology with low latency for smooth 4K streaming, gaming, and video calls. Backward compatible with DOCSIS 3.0 networks.
POTENTIAL SAVINGS: May eliminate monthly modem rental fees (check current rates with your provider). 30+ years Hitron expertise with 7-day technical support and warranty coverage.
BEFORE PURCHASING: (1) Confirm you have CABLE internet service, (2) Check your internet speed plan is 1+ Gbps, (3) Ensure you own or will purchase a WiFi router
WILL NOT WORK WITH: Verizon FiOS, AT&T Fiber, CenturyLink DSL, Satellite Internet (HughesNet, Viasat), T-Mobile/Verizon Home Internet
TRUSTED BRAND + SUPPORT: 30+ years of networking expertise with technical support 7 days per week, warranty coverage, and easy product registration.

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8.1

NETGEAR

NETGEAR Nighthawk WiFi 6Cable Modem Router CAX30-100NAR Compatible with Xfinity, Spectrum, and Cox, AX2700 (Up to 2.7Gbps) DOCSIS 3.1 (Renewed)

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Main Highlights

Compatible with all major cable internet providers with internet speed up to 2Gbps. Currently certified with Spectrum and Cox (up to 1Gbps) and Xfinity (up to 800Mbps). Future speeds with these service providers may change over time. Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service
Coverage up to 2,500 sq. ft. and 25 concurrent devices with dual-band WiFi 6 (AX2700) speed (up to 2.7Gbps)
4 X 1 Gig Ethernet ports (supports port aggregation) and 1 USB 3.0 port for computers, game consoles, streaming players, storage drive, and other wired devices
Sets up easily with the Nighthawk app easily manage WiFi settings at the device and network level, test internet speed and monitor data usage
DOCSIS 3.1 and 32x8 channel bonding
Replaces your cable modem and WiFi router. Save up to $168/yr in equipment rental fees
Supports WPA/WPA2/WPA3 wireless security protocols

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Our Best Overall Choice

Best Choice

9.7

NETGEAR

NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM2500) – Approved for Today’s Faster Speeds & Compatible with All Providers Incl. Xfinity, Spectrum, Cox - for Plans up to 2Gbps (Renewed)

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Mid/high-split DOCSIS 3.1 cable modem delivers up to 2Gbps of download speeds and 1Gbps of upload speeds
Unlock faster cable internet speeds, such as Xfinitys 900Mbps download speeds and 100Mbps upload speeds. Works with all major US internet providers. Not compatible with Xfinity Voice plans
Faster download speeds powers your digital lifestyle with enhanced speed, capacity, efficiency, and response times
10x faster upload speeds for seamless multi-family gaming, video conferencing and uploading even the largest filessimultaneously. Plus provides easy remote access to your home security cameras and files on your NAS
For the ultimate in performance, link a NETGEAR WiFi 6E or WiFi 7 router or Orbi system to the CM2500 cable modem
Stay ahead of future internet speeds with our mid/high-split DOCSIS 3.1 cable modem for much higher performance levels
Stay ahead of future internet speeds with our mid/high-split DOCSIS 3.1 cable modem for much higher performance levels
Connect the two Gigabit ports to a router with link aggregation for up to 2Gbps
Made for use in the US only

Show Price

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