MOTOROLA 24×8 Cable Modem, Model MB7621, DOCSIS 3.0. Approved by Comcast Xfinity, Cox, Charter Spectrum, Time Warner Cable, and More. Downloads 1,000 Mbps Maximum (No WiFi)

February 22, 2020 - Comment

Model MB7621 is a 24×8 1,000 Mbps DOCSIS 3.0 cable modem certified by XFINITY from Comcast for speed tiers up to and including Comcast Xfinity Extreme Pro Internet 400. The MB7621 is also approved by Charter Spectrum, Suddenlink, CableOne, RCN and more. Owning this modem eliminates modem rental charges that are up to $156 per

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(as of April 19, 2020 9:01 am GMT+0000 - Details)

Model MB7621 is a 24×8 1,000 Mbps DOCSIS 3.0 cable modem certified by XFINITY from Comcast for speed tiers up to and including Comcast Xfinity Extreme Pro Internet 400. The MB7621 is also approved by Charter Spectrum, Suddenlink, CableOne, RCN and more. Owning this modem eliminates modem rental charges that are up to $156 per year. With easy installation, high-speed, Broadcom IC technology, broad compatibility, and superb customer support, Model MB7621 is the perfect choice for almost any cable modem user. 24 X 8 performance means that up to 24 cable data channels carry data from the Internet, twenty-four times faster than DOCSIS 2.0; and up to 8 channels carry data to the Internet. A Full-Band Capture digital tuner helps assure consistently fast speeds from your service provider. MB7621 does not include a WiFi Router or an adapter for telephone service (sometimes called cable telephone or digital telephone service). It includes a 10/100/1000 Gigabit Ethernet (GigE) port for a high-speed connection of a WiFi router, computer, HDTV, game station, or other Ethernet-capable device. Setup is fast and easy with a few quick steps set out in a Quick Start guide. Experienced USA-based customer support specialists are ready and willing to help if you need them. Model MB7621’s compact, attractive design saves space and looks good in any home or office. This product is backed by a two-year warranty and features ruggedized lightning and power surge circuits to provide additional protection of your investment. DOCSIS 3.0, 2.0, and 1.1 support and Cable Labs certification ensure compatibility with services nationwide. Best of all, the MB7621 offers the value, performance, and attention to quality that continue to make Motorola the leading brand of cable modems. Please note that the MB7621 plugs easily into computers, HDTVs, and other Ethernet-capable devices including any router of your choice, but the MB7621 does not have a built-in Wi-Fi router or phone jack.

Comments

Anonymous says:

Gives me the speed I am paying for and can go beyond, easy setup too. I have xfinity performance pro which is rated for 150 mb/s down and 5 mb/s up. I’ve been using the Arris SB6141 modem which is 8 channel down x 4 channel up, great modem, no issues but it’s speed maxed out at 120 mb/s down and 5 mb/s up. I figured what the heck might as well get the speed i’m paying for, so I purchased the Motorola SB7621 which is 24 channel down x 8 channel up. Internet speed is now 180mb/s down and 6mb/s up with a ping of 19ms. I am happy that I am now getting the speed I am paying for. Yes the upload speed didn’t change much but that is because xfinity does not support 8 channel up in my area. This means even though this modem supports 8 channel up it only shows 4 active up channels when you log into it, this is not the modems fault, this is xfinity’s doing. The download channels are fine, all 24 channels show up and are active. Yes, I could have purchased a 16 channel down and 4 channel up modem and received the same current speeds but at the time of…

Anonymous says:

Big Dissappointment — Download Speed Dropped by 66% !!! This Motorola MB7621 cable modem was a huge disappointment. I bought it to replace my four year old Arris SB6141 which is a 8×4 modem. The MB7621 is 24×8 so in theory it should give better performance. However, the performance I saw was much worse than the older SB6141 with download speeds. I have Comcast Performance Pro 150mb service and was routinely seeing about 100mb in real life with the old modem. When I put this new cable modem on the coax the download speed consistently dropped to about 32mb. The signal levels all looked good and there weren’t any uncorrected codewords. It appeared that 23 of the 24 available download channels achieved a lock. After spending several hours playing around with settings, etc, and chatting with Comcast “support” (useless) I had to assume that it was somehow defective. Back to using my trusty old Arris SB6141, hopefully for a few more years. I noted another reviewer also saw speed slowdowns on this modem. Even though it is…

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