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  • NEW: This mid/high-split DOCSIS® 3.1 cable modem delivers up to 2Gbps of download speeds and up to 1Gbps of upload speeds
  • NEW: Unlock faster cable internet speeds, such as Xfinity’s 900Mbps download speeds and 100Mbps upload speeds. Not compatible with Xfinity Voice plans.
  • NEW: Faster download speeds1 powers your digital lifestyle with enhanced speed, capacity, efficiency, and response times
  • NEW: 10x faster upload speeds1 for seamless multi-family gaming, video conferencing, and uploading even the largest files - simultaneously. Plus, provides easy remote access to your home security cameras and files on your NAS
  • For the ultimate in performance, link NETGEAR’s award-winning 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 modem2
  • Connect the two Gigabit ports to a router with link aggregation for up to 2Gbps
CM2500 CM2500-100NAS CM2500-100NAS

DOCSIS® 3.1 Cable Modem (CM2500) armor

Nighthawk® Mid/high-Split Multi-Gig 2Gbps Cable Modem armor

DOCSIS® 3.1 Cable Modem (CM2500)

Nighthawk® Mid/high-Split Multi-Gig 2Gbps Cable Modem armor

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  • NEW: This mid/high-split DOCSIS® 3.1 cable modem delivers up to 2Gbps of download speeds and up to 1Gbps of upload speeds
  • NEW: Unlock faster cable internet speeds, such as Xfinity’s 900Mbps download speeds and 100Mbps upload speeds. Not compatible with Xfinity Voice plans.
  • NEW: Faster download speeds1 powers your digital lifestyle with enhanced speed, capacity, efficiency, and response times
  • NEW: 10x faster upload speeds1 for seamless multi-family gaming, video conferencing, and uploading even the largest files - simultaneously. Plus, provides easy remote access to your home security cameras and files on your NAS
  • For the ultimate in performance, link NETGEAR’s award-winning 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 modem2
  • Connect the two Gigabit ports to a router with link aggregation for up to 2Gbps

What's new

cm3000
cm3000


DOCSIS 3.1 TECHNOLOGY
Faster speed & more capacity

2Gbps
2Gbps


DOWNLOAD SPEEDS
With link aggregation

cm300-specs-img-1gbps
cm300-specs-img-1gbps


UPLOAD SPEEDS
10x faster with mid/high-split technology

Compatible with major cable
internet providers

CM2500 supports the fastest internet speeds today, and in the future, as internet providers increase their speeds.

CM3000-specs-img-unprecedented-download-speedsCM3000-specs-img-unprecedented-download-speeds

Unprecedented download speeds

Up to 2Gbps download speeds powers your demanding digital lifestyle with flawless video and music streaming, more responsive online gaming, and rapid app downloads.

CM3000-specs-img-fast-upload-speedsCM3000-specs-img-fast-upload-speeds

Blazing-fast upload speeds

Engineered with mid/high-split DOCSIS 3.1 technology, CM2500 enables upload speeds up to 1Gbps for smooth, uninterrupted video conferencing while uploading even the largest files - simultaneously.

cm3000cm3000

Maximize performance

For the ultimate in performance, combine CM2500 multi-gigabit speeds with an award-winning NETGEAR WiFi 6E or WiFi 7 router or mesh system.

cm3000cm3000

Stop renting, start saving

Own your own high-performance modem for maximum flexibility to connect a WiFi router that best meets your needs while also eliminating monthly rental fees.

Cable Modem Product Comparison

CM3000
SHOP NOW
CM2500
SHOP NOW
CM2050V
SHOP NOW
Modem Technology
DOCSIS 3.1 Mid/high-split
DOCSIS 3.1 Mid/high-split
DOCSIS 3.1
Max Download Speed
2.5Gbps
2Gbps (with link aggregation)
2.5Gbps
Max Upload Speed
1Gbps
1Gbps
800Mbps
Maximum Download/Upload Speed – Xfinity*
2Gbps, 200Mbps
900Mbps, 100Mbps
2Gbps, 50Mbps
Maximum Download/Upload Speed – Spectrum*
1Gbps, 35Mbps
900Mbps, 35Mbps
n/a
Maximum Download/Upload Speed – Cox*
1Gbps, 100Mbps
900Mbps, 100Mbps
n/a
Ethernet Ports (LAN)
1 x 2.5Gbps + 2 x 1Gbps
2 x 1Gbps
1 x 2.5Gbps
Voice Ports
0
0
2
Link Aggregation
Yes
Yes
No
Price
$299.00
$249.00
$349.99

Technical Specifications

cm2500 cm2500

Product specifications

  • Nighthawk Mid/high-Split 2Gbps Internet Speed Cable Modem (CM2500)
    1
  • Ethernet cable
    1
  • Quick install guide
    1
  • Power adapter
    1
  • Dimensions
    6.8 x 3.7 x 8.2 in (172 x 94 x 208 mm)
  • Weight
    1.09 lb (495 g)
  • Cable broadband Internet service

    Please check your cable Internet service provider web site for data speed tier compatibility and to ensure it provides DOCSIS® 3.1 service, otherwise this modem will only work as a DOCSIS® 3.0 modem

    Not compatible with cable bundled voice services

    This cable modem does not have a built-in wireless router

    WiFi router required for connection to WiFi devices

  • NETGEAR 1-year limited warranty (valid only if purchased from a NETGEAR authorized reseller)

    Extend your warranty and technical support within 90 days of product purchase (US only) Learn More

  • 90-day complimentary technical support (valid only if purchased from a NETGEAR authorized reseller)

Footnotes:

10Gbps is the maximum data transfer rate in the DOCSIS® 3.1 standard. In practice, your Internet speeds will be less, as the transfer rate through the CM2500 Gigabit Ethernet port is limited to 2Gbps. The internet speeds may also be reduced by the volume of network traffic or your service plan. Maximum rate is derived from DOCSIS® 3.1 specifications and actual throughput will vary depending on your internet subscription with your provider. Gigabit service plans & compatible cable modem required for Gigabit or Multi-Gig Internet speeds.

‡‡CM2500 is prepared for today and tomorrow with both mid/split and high/split technology. Mid-split technology is currently being offered by some ISPs in some regions. High/split technology may be offered by ISPs in the near future. Please check with your ISP regarding mid-split and high/split compatibility.

1Compared to DOCSIS® 3.0 and Low-Split. Maximum rate is derived from DOCSIS® 3.1 and Mid/High-Split specifications and actual throughput will vary depending on your Internet subscription with your provider.

2 Savings shown may vary by cable service providers.

* The internet speeds and actual throughput will vary depending on your internet subscription with your provider or volume of network traffic.

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