Netgear CM500 DOCSIS 3 Cable Modem

Netgear CM500 is a new high speed DOCSIS 3.0 cable modem delivering internet speeds of up to 680Mbps. How will this product compared with others that have been around for years like Surfboard Cable modem series?

What this CM500 does

Netgear CM500 is DOCSIS 3.0 cable modem – a CableLabs® certified delivering high speed cable internet connection with download speeds of up to 680Mbps (16x channel bonding) and upload speeds of up to 132Mbps (4x channel bonding). The speeds deliver to your home will depend your Cable services and the plan services you subscribe to the Cable provider. For example, with Xfinity Extreme 150 package the download speeds up to 150Mbps, or Ultimate 300 plans.

If your existing cable modem is still Surfboard SB6120 that can delivers only 100Mbps then there will be a bottleneck, you should upgrade the modem that can deliver download speeds up to 340Mbps such as Surfboard SB6141 or CM400 that can deliver speeds up to 340Mbps. All of those modems are DOCSIS 3 cable modem.

Main features

  • DOCSIS 3.0 cable modem with CableLabs® Certified
  • Deliver download speeds of up to 16x channel bonding (680Mbps) and upstream speeds 4x channel bonding (132Mbps)
  • Fast self-activation Comcast for XFINITY customers—Get connected without a service call
  • Gigabit auto-sensing Ethernet port for optimum connection to your Gigabit router
  • Advanced Quality of Service (QoS)
  • Powerful hardware with 8MB flash and 128MB RAM
  • IPv6 support

CM500 Docsis 3 cable modem

This cable modem is ideal for high speed premium cable services such as XFINITY Internet Blast and Extreme Customers & Time Warner Maxx with 300Mbps plans.

Comparison Netgear Vs Surfboard Cable Modem

Many people are loyal to Motorola products regarding Cable modem, even though today Motorola cable modem products are under the Arris umbrella the product names are still the same – the Surfboard cable modem series.  What are the differences between CM500 and Surfboard SB6141?

Let’s have a look at the following CM500 Vs Surfboard SB6141 comparison table that shows only main feature differences. Both are DOCSIS 3.0 cable modems and includes one Gigabit Ethernet port that is ideal in connecting to high performance wireless routers such as most popular wireless AC1200 routers including Linksys WRT1200AC.

Table 1 Netgear CM500 Vs Surfboard SB6141

Netgear CM500 Surfboard SB6141
Download speeds 16x Channel bonding

Up to 680Mbps

8x Channel bonding

Up to 300Mbps

Upload speeds 4x Channel bonding

Up to 132Mbps

4x Channel bonding

Up to 100Mbps

Activation self-activation Comcast for XFINITY customers Call provider
Dimension 4.88 in W x 7.28 in H x 2.36 in D 5.24 in W x 5.24 in H x 1.65 in D
Price $97.00 $89.99


Surfboard SB6141 becomes #1 best seller in Amazon for long period of time with excellent average customer ratings of 4.4 out of 5 star.

Click here for Surfboard SB6141 Spec details and current price.

As a new cable modem product, Netgear CM500 is getting its popularity time by time and the average customer ratings is very excellent – 4.7 out of 5 star.

Click here for CM500 Netgear Spec details and current price.

Arris / Motorola also releases similar product as CM500 – the Surfboard SB6183 DOCSIS 3 cable modem. Have a look at this comparison table between CM500 and SB6183.

Table 2 CM500 Vs Surfboard SB6183

Netgear CM500 Surfboard SB6183
Download speeds 16x Channel bonding

Up to 680Mbps

16x Channel bonding

Up to 686Mbps

Upload speeds 4x Channel bonding

Up to 132Mbps

4x Channel bonding

Up to 110Mbps

Activation self-activation Comcast for XFINITY customers Call provider
Price $97.00 $129.99


Netgear releases newer version of this product – Netgear CM600 Cable modem

Both products have similar features, the download and upload speeds are the same. However price is cheaper for Netgear and so far the average customer rating for Surfboard SB6183 is 4.5 out of 5 star, excellent achievement actually.

Click here for Surfboard SB6183 spec details and current price.

Netgear CM500 is worth to purchase to upgrade your existing DOCSIS 2.0 cable modem should you require upgrade your bandwidth plans. You should also need to consider upgrading your existing wireless N routers to next generation of wireless AC router such as new Linksys EA8500 wireless AC2600 router or three band router Linksys EA9200 router.

Cheers, Ki G.

See also new Netgear Nighthawk C7000 wireless AC1900 cable modem combo. Or you may also consider the new technology of high speed DOCSIS 3.1 cable modem – see also Netgear SB8200 DOCSIS 3.1 cable modem.

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