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Cable Modem Model MB7621 DOCSIS 3.0 Comcast Xfinity Charter Approved 24x8 Modems - Picture 1 of 7
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Cable Modem Model MB7621 DOCSIS 3.0 Comcast Xfinity Charter Approved 24x8 Modems

Wires Computing
(8190)
Registered as a business seller
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US $39.69
Approximately£29.33
Condition:
Used
“Lightly used in good working condition”
Collection:
US $10.00 (approx £7.39) collection in person from Burlington, Vermont, United States
Postage:
US $3.99 (approx £2.95) USPS Ground Advantage®.
Located in: Burlington, Vermont, United States
Delivery:
Estimated between Sat, 26 Jul and Thu, 31 Jul to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the delivery service selected, the seller's delivery history and other factors. Delivery times may vary, especially during peak periods.
Ships today if you order in the next 31 mins
Returns:
No returns accepted.
Payments:
    Diners Club

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Seller assumes all responsibility for this listing.
eBay item number:115781168857
Last updated on 17 Jun, 2025 03:23:09 BSTView all revisionsView all revisions

Item specifics

Condition
Used
An item that has been previously used. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or an item that has been returned to the seller after a period of use. See the seller’s listing for full details and description of any imperfections. See all condition definitionsopens in a new window or tab
Seller notes
“Lightly used in good working condition”
Maximum LAN Data Rate
1000 Mbps
Manufacturer
MTRLC LLC
UPC
855631006347
Product Dimensions
72 x 22 x 79 inches
Item Weight
112 ounces

About this product

Product Identifiers

Brand
Motorola
MPN
MB762110
Ean
0855631006347
GTIN
0855631006347
UPC
0855631006347
Model
MB7621-10
eBay Product ID (ePID)
26031753667

Product Key Features

Maximum Downstream Data Rate
1000Mbps
Carrier
Comcast
DOCSIS Standard
DOCSIS 3.0
Connectivity
Cable
Modem Device Type
Cable Modems & Routers
Features
Unlocked
Ports
Ethernet (RJ-45)
Type
Cable

Dimensions

Weight
1.12 Ounces

Additional Product Features

Cellular Network Technology
4G

Item description from the seller

Seller business information

About this seller

Wires Computing

98.2% positive Feedback•20K items sold

Joined Apr 2007
Registered as a business seller
Electronics and computer repair shop, we buy and sell electronics. We strive for 5⭐ Cell Phone Parts, FPV Drone Parts, Computer replacement parts, Laptops, Mobile Device Parts and much more. We offer ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.8
Reasonable postage cost
5.0
Delivery time
5.0
Communication
5.0

Popular categories from this shop

See allcategories
ComputersCell PhonesTabletsAccessoriesMobile Device PartsToolsDrone PartsDronesMotherboards

Seller Feedback (4,771)

All ratings
Positive
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Negative
  • u***a (10)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Sent an expensive cpu out that had bent pins either two missing. Received it in the span of less than one week, as per advertised. Came back spotless and looked brand new again. Would definitely use their services again in the future.
    Reply from: wires_comp- Feedback replied to by seller wires_comp.- Feedback replied to by seller wires_comp.
    We love your great feedback and we appreciate your business✌️ You are welcome back anytime, feel free to visit our Wires Computing store🏬
    AMD Ryzen CPU Processor Pin Repair service (Bent or missing pin repair service) (#115490030883)
  • t***5 (65)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Item not delivered, Seller was not able to ship to location and cancel order, properly and same day of the order issued a full refund and send email notification. Very fast, responsive and responsible merchant.
    Kingston 8GB 1RX8 PC4-3200AA 3200Mhz SO-DIMM Memory Ram Module Upgrade Stick (#126482384460)
  • o***l (53)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Package arrived on time after shipping quickly. Extremely well packed nice and secure. The price was excellent. Everything was exactly as described. Very happy with my purchase.
    Reply from: wires_comp- Feedback replied to by seller wires_comp.- Feedback replied to by seller wires_comp.
    We thank you for your great feedback and we appreciate your business✌️ You are welcome back anytime, feel free to visit our Wires Computing store🏬
    Xbox Wireless Controller Volt Green -Xbox Series X|S, Xbox One, PC, iOS, Android (#116612516569)
See all Feedback

Product ratings and reviews

Learn more
4.9
45 product ratings
  • 39 users rated this 5 out of 5 stars
  • 6 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Easy to set up

Good value

Performs well

Most relevant reviews

See all 40 reviews
  • by slade-03
    12 Aug, 2022Most favourable review

    Great modem for the price

    Replaced my Xfinity modem to save the $14 month rental, fee. When directly plugged into the modem my laptop gets the full bandwidth but once I connect my router and plug into one of the lan ports the speed is noticeably slower. I think Xfinity throttles the speed when you replace their modem for your own, as this has happened with previous devices. This is no fault of the modem, other than that it works fine for my needs. I could have gone with a Docsis 3.1 device but with the internet plan I have I saw no real benefit. I will see how this holds up over time but I do not foresee any issues, it is working well so far

    Verified purchase: YesCondition: Pre-ownedSold by: brad_snyder

  • by buzzltyr2012
    31 Dec, 2022

    Good Modem that Works Well with Google Mesh Routers and Ring Security System

    My only criticism of this modem is that it has only one ethernet port. Otherwise, it is working really well for me. Works perfectly with my Google Mesh network system, and allows me to fully utilize all the features of my Ring security system (my previous modem/router did not allow video from my Ring system).

    Verified purchase: YesCondition: Pre-ownedSold by: hwillow

  • by deslok01
    10 Feb, 2021

    Maximum performance for my Xfinity plan

    The MB7621 is perfect for my situation. I get exactly the speeds I pay for, without overpaying for a “faster” more expensive new gigabit modem from the likes of Arris or Netgear which would have cost 4x more. Best of all, I am avoiding the $14 monthly equipment fee I was paying Xfinity.

    Verified purchase: YesCondition: Pre-ownedSold by: vgzprt

  • by good_1
    05 Nov, 2019

    Motorola MB7621 - good modem at a reasonable price

    Easy to connect. Came alive as soon as Comcast registered it at their end. The original speed has definitely improved but not to the speed Comcast is charging me for. Will update after taking this up with Comcast. This is one of the modems in their approved list.

    Verified purchase: YesCondition: NewSold by: wilmcg_98

  • by butchmudhole
    02 Feb, 2023

    Good performer but Mediacom may throttle you back

    Product performs well ... but .... I don't get full usage from all channels ... this could be the ISP, which is mediacom and they are horrible at most things ... I'm getting 20 not 24 up and 4 not 8 down. I'm not blaming motorola as I can't confirm from mediacom that they are throttling me back. So, be aware that 24 x 8 docsis 3.0 may not get fully utilized as most everyone is pushing towards docsis 3.1

    Verified purchase: YesCondition: Pre-ownedSold by: liss0915

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