NETGEAR CM1000 Cable Modem

The NETGEAR CM1000 cable modem specifications follow below. Note: may receive a small commission from affiliate links, which helps to keep this website online.



  • Download speed up to 6 Gbps
  • DOCSIS 3.1 cable modem
  • Backward compatible with DOCSIS 3.0 networks
  • Supports IPv6
  • WiFi router: No
  • VoIP telephone adapter: No

NETGEAR CM1000 Cable Modem Images

NETGEAR CM1000 Cable Modem Package
NETGEAR CM1000 Package
NETGEAR CM1000 Cable Modem Front View
NETGEAR CM1000 Front View
NETGEAR CM1000 Cable Modem Back View
NETGEAR CM1000 Back View

Notable NETGEAR CM1000 Cable Modem Specs

Type: Cable
DOCSIS: 3.1, backward compatible with DOCSIS 3.0
Color: Black
IPv6 Support: Yes
WiFi Router: No
VoIP Telephone Adapter: No

Network Interface
Interface: 10/100/1000 RJ-45 Gigabit Ethernet Port
Quantity: 1 Gigabit Ethernet Port

Device Power
Power Consumption: 30 Watts

Min Operating Temperature: 32 °F (0 °C)
Max Operating Temperature: 104 °F (40 °C)
Operating Humidity: 90% (maximum relative humidity, non-condensing)

Physical Specifications
Height: 8.8 in (222.7 mm)
Width: 5.4 in (135.9 mm)
Depth: 5.9 in (149 mm)
Weight: 0.84 lb (0.38 kg)

Maximum Theoretical Data Rate: 6 Gbps*
Bonded Channels: 32 SCQAM (DOCSIS 3.0) or 2 OFDM (DOCSIS 3.1)

Bonded Channels: 8 SCQAM (DOCSIS 3.0) or 2 OFDM (DOCSIS 3.1)

*Various factors affect actual data throughput, such as the total number of users on the network, services offered by the internet provider, type of server, computer equipment, and other factors.

NETGEAR Resources

CM1000 Data Sheet

CM1000 Quick Start Guide

CM1000 User Manual

NETGEAR Phone Support: 1-888-638-4327


NETGEAR Facebook



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2 thoughts on “NETGEAR CM1000 Cable Modem”

  1. Would it be possible to get a list of approved routers for this?

    I’m using my SBG 6580 as a bridge mode (upgraded modem to CM1000) and there are Issues.

    • Pratik, any stand-alone router will be compatible with the NETGEAR CM1000. Routers don’t need to be approved to work with certain modems; any router will work.

      To be clear, only modems need to be approved for an internet provider. Routers will work with any modem.


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