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Deal.ai › Netgear › Mobile Modems
NETGEAR
Nighthawk Multi-Gig 2.5Gbps Cable Modem
NETGEAR

Nighthawk Multi-Gig 2.5Gbps Cable Modem

4.3(17 ratings)

Best price now

$238.99at FinanceMyCartChecked 31 min ago

Compared across 10 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $238.99 at FinanceMyCart (checked Nov 12, 2026).
  • Checked at 10 stores.

Our take on the Nighthawk Multi-Gig 2.5Gbps Cable Modem

The NETGEAR Nighthawk CM2500 is a standalone DOCSIS 3.1 cable modem with no built-in Wi-Fi, so you pair it with whatever router or mesh system you already own. It has two LAN ports and supports link aggregation for up to 2Gbps wired throughput, and it works on Xfinity, Spectrum and Cox plans. Owners mostly report easy setup and a real speed jump over older DOCSIS 3.0 modems, though some hit activation trouble with Xfinity and a few saw no improvement. It suits people on gigabit cable plans who want to stop renting a modem and keep their own router.

Best forCable internet households on gigabit plansOwners who want to keep their own Wi-Fi router or meshPeople replacing an aging DOCSIS 3.0 modemMulti-user homes streaming 4K and gaming at once
Pros
  • DOCSIS 3.1 with backward support for 3.0 networks
  • Two LAN ports with link aggregation for up to 2Gbps
  • No Wi-Fi built in, so any router or mesh can be paired
  • Works with Xfinity, Spectrum and Cox
  • Guided online setup, with Xfinity self-activation
Cons
  • Not compatible with Verizon, AT&T, CenturyLink, DirecTV or DISH
  • Bundled voice plans are not supported
  • Some owners needed provider support to activate
  • A few reported interference with TV picture when placed behind the TV
  • One owner saw no speed gain over the old modem

Nighthawk Multi-Gig 2.5Gbps Cable Modem prices at every store

  • eBayPre-owned

    In stockSold by the80sbest

    $59.49Free shippingChecked 1 h ago
    Visit eBay
  • FinanceMyCartNew

    In stockReturn policy

    $238.99Checked 31 min ago
    Visit FinanceMyCart
  • Best BuyNew

    In stock

    $249.99Free shippingChecked 32 min ago
    Visit Best Buy
  • Abt ElectronicsNew

    In stock

    $249.99Free shippingChecked 32 min ago
    Visit Abt Electronics
  • StaplesNew

    In stock

    $249.99Free shippingChecked 32 min ago
    Visit Staples
  • NeweggNew

    In stock

    $249.99Free shippingChecked 32 min ago
    Visit Newegg
  • Improvemint FinancialNew

    In stockReturn policy

    $259.99Checked 32 min ago
    Visit Improvemint Financial
  • QuillNew

    In stock

    $387.99Free shippingChecked 32 min ago
    Visit Quill
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $299.99Free shippingChecked 31 min ago
    Visit Amazon
  • NetgearNew

    Out of stock

    $249.99Checked 32 min ago
    Visit Netgear

Store links may earn us a commission. Some prices via Klarna.

Nighthawk Multi-Gig 2.5Gbps Cable Modem price history

Lowest price we've seen: $249.99 on Nov 13 at Best Buy. Tracked across 7 stores since Nov 13.

What reviewers say

  • 4.3 / 517 ratings

Buyers rate it well overall, with most praising quick setup and a clear speed increase after upgrading from DOCSIS 3.0. Complaints center on Xfinity activation and a handful of connection failures.

What people mention
  • SetupMixedMany call setup easy, but some Xfinity customers needed a support call to activate.
  • SpeedPraisedOwners report a significant speed increase over older DOCSIS 3.0 modems, though one found it no faster.
  • ConnectionMixedMost get a seamless connection, but a few could not get it working.
  • PlacementCriticisedOne owner saw interference with the TV picture when the modem sat behind the TV.
  • Router compatibilityCriticisedA reviewer found it incompatible with some existing Nighthawk routers.

From Abt Electronics

  • Mid/High-Split DOCSIS 3.1 cable modem
  • Up to 2Gbps download speeds
  • Up to 1Gbps upload speeds
  • Works with major U.S. cable providers including Xfinity, Spectrum and Cox
  • Link aggregation for up to 2Gbps
  • Save on monthly ISP equipment rental fees by owning your own modem
Guarantee
1 Year Limited Parts Warranty
Returns
Extended returns through January 15th, 2027
Shipping
Free Shipping
In the box
Nighthawk Mid/High-Split 2Gbps Internet Speed Cable Modem (CM2500), 1x Ethernet Cable, 1x Quick Install Guide, 1x Power Adapter

About the Nighthawk Multi-Gig 2.5Gbps Cable Modem

The NETGEAR Nighthawk Multi-Gig Cable Modem (CM2500) is a DOCSIS 3.1 cable modem with Mid/High-Split support. It has no Wi-Fi of its own. You connect it to any WiFi router or mesh system, so you can change your WiFi setup without replacing the modem.

It supports download speeds up to 2Gbps and upload speeds up to 1Gbps. It works with DOCSIS 3.0 and DOCSIS 3.1 cable networks. Its two Ethernet ports support link aggregation for up to 2Gbps. DOCSIS 3.1 OFDM and OFDMA help keep response times and speeds steady. Actual speeds vary by plan and provider.

It works with Xfinity plans up to 800Mbps, Spectrum plans up to 1Gbps and Cox plans up to 1Gbps. It is not compatible with Verizon, AT&T, CenturyLink, DirecTV, DISH or bundled voice plans. To set up, plug in the coax cable and activate service in a web browser or by calling your provider. Then connect the modem to your router with an Ethernet cable. Xfinity customers can self-activate online. ISP activation is required.

Model
Nighthawk CM2500
Type
Cable modem, no Wi-Fi
DOCSIS
DOCSIS 3.1, Mid/High-Split
Download speed
Up to 2Gbps
Upload speed
Up to 1Gbps
Ports
2 x Ethernet (RJ-45) LAN ports
Wired speed
2 Gbps with link aggregation
IPv6
Supported
Compatible ISPs
Xfinity up to 800Mbps, Spectrum up to 1Gbps, Cox up to 1Gbps
Not compatible
Verizon, AT&T, CenturyLink, DirecTV, DISH, bundled voice plans
Works with
Any WiFi router or mesh system

What buyers say

Buyers like
  • Easy setup
  • Significant speed increase after upgrading
  • Works as advertised
  • Seamless connection
  • Faster connection than older DOCSIS 3.0 modem
Buyers complain about
  • Activation with Xfinity/Comcast was difficult and required calling support
  • Some could not get it connected and working
  • Interference with TV picture when placed behind the TV
  • Incompatibility with some existing Nighthawk router products
  • One reviewer found it no faster than before

Specifications

Maximum Downstream Data Rate
4Gbps
Ports
Ethernet (RJ-45)
Item Length
11.500
To Fit
Any Wi Fi Router
DOCSIS Standard
DOCSIS 3.1
Modem Device Type
Cable Modems & Routers
Item Height
5.000

Questions and answers

Does it have built-in Wi-Fi?
No. It is a modem only, so you need a separate router or mesh system connected by Ethernet.
Which providers support it?
It works with Xfinity, Spectrum and Cox cable plans. It does not work with Verizon, AT&T, CenturyLink, DirecTV, DISH or bundled voice plans.
How fast is it?
It supports DOCSIS 3.1 with up to 2Gbps download over link aggregation and up to 1Gbps upload, depending on your plan and provider.
What is in the box?
The modem, one Ethernet cable, a power adapter and a quick install guide.
Do I still need to activate it with my provider?
Yes. Plug in the coax, then activate through your browser or by calling your provider. Xfinity customers can self-activate online.
Can I use it with my current router?
Yes, any Wi-Fi router or mesh system works over Ethernet, though some owners reported issues with certain Nighthawk routers.
Where is the Nighthawk Multi-Gig 2.5Gbps Cable Modem cheapest?
At FinanceMyCart, for $238.99, as of our latest check.
What do buyers say about the Nighthawk Multi-Gig 2.5Gbps Cable Modem?
Rated 4.3 out of 5 from 17 ratings. Buyers like: Easy setup; Significant speed increase after upgrading; Works as advertised. Common complaints: Activation with Xfinity/Comcast was difficult and required calling support; Some could not get it connected and working.
Where can I buy the Nighthawk Multi-Gig 2.5Gbps Cable Modem?
10 stores we checked sell it, including FinanceMyCart, Amazon, Best Buy, Abt Electronics, Staples.

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Stores we've priced the Nighthawk Multi-Gig 2.5Gbps Cable Modem at

  • Best Buy deals and prices
  • NETGEAR deals and prices
  • Newegg deals and prices
  • staples.com deals and prices

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Connectivity
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Width (")
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DOCSIS Certification
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Number of LAN Ports
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