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Item#: N82E16825188005

ZyXEL BRG35503 DOCSIS 3.0 Residential Cable Modem Up To 160 Mbps Down and 120 Mbps Up RJ-45, Gigabit Ethernet DOCSIS 3.0, 2.0 and 1.1, Euro-DOCSIS 3.0

  • Compatible with Comcast & Time Warner
  • Gigabit Ethernet connectivity
  • DOCSIS/EuroDOCSIS 3.0 compliant
  • 4x4 channel bonding
  • CableLabs CW66 certified

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the ZyXEL BRG35503

Model

Brand
ZyXEL
Model
BRG35503

Details

Type
Cable Modem
Interface
RJ-45 10/100/1000Mbps Ethernet (Auto-MDI/MDIX)
Cable Interface
F-type RF connector, female, 75ohm
Standards
DOCSIS/EuroDOCSIS 1.1/2.0/3.0 Compliant
SNMP V1, V2c, V3
IEEE802.3, 802.3u

Features

Features
Receiver-Demodulation:
-Demodulation: 64QAM, 256QAM
-Data Rate:
Up to 160 Mbps with 4 Downstream channel bonding (DOCSIS)
Up to 220 Mbps with 4 Downstream channel bonding (EuroDOCSIS)
-Frequency (edge to edge):
88 - 1002 MHz (DOCSIS)
08 - 1002 MHz (EuroDOCSIS)
-Channel bandwidth:
6Mhz (DOCSIS, DOCSIS-J)
8Mhz (Euro DOCSIS)
6 / 8 MHz (Dual Mode)
-Signal Level: 17 dBmV

Transmitter-Modulation:
-Modulation: QPSK, 8 QAM, 16 QAM, 32 QAM, 64 QAM, and 128 QAM (SCDMA only)
-Data Rate up to 120 Mbps with 4 Upstream channels bonding
-Frequency (edge to edge):
5 - 42 MHz (DOCSIS)
5 - 65 MHz (EuroDOCSIS)
5 - 65 MHz (DOCSIS-J)
-Output level of CM can be controlled by CMTS though power ranging function, Step: 1 dB
-Output Return Loss: >6dB

5 status LEDs: Power, Downlink, Uplink, Ethernet, Status

Factory default reset button

Supply voltage of external power supply:
Input 100 - 240 VAC 50/60Hz
Output 6VDC, 1.5A

Product metrics: 180mm (W) x 44mm (H) x 130mm (D)

Weight: 220g approximately

Surge Protection:
On RF Input shall sustain at least 3KV
On Ethernet RJ-45 shall sustain at least 6KV

The BRG-35503 cable modem allows high-speed data transmission through coaxial cable, with 4 DS channels bonding the downstream speeds of up to 220 Mbps from network to the user under bridge mode, and 10/100/1000 Mbps ethernet port from the user to network.
Service Provider
Comcast Network
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years
  • Read full details

Customer Reviews of the ZyXEL BRG35503

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  • Anonymous
  • 7/30/2015 10:14:39 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGreat modem!

This review is from: ZyXEL BRG35503 DOCSIS 3.0 Residential Cable Modem Up To 160 Mbps Down and 120 Mbps Up RJ-45, Gigabit Ethernet DOCSIS 3.0, 2.0 and 1.1, Euro-DOCSIS 3.0

Pros: Cheap!
Works great!

Cons: No phone line, if you need a land-line phone.

Other Thoughts: For the price, it's fantastic. I have my PC, iPad, cell phone, and sometimes my work laptop all using wifi/ethernet and the speed is great. Highly recommend if you do not want to pay Comcast a rental fee for your modem!

Did you find this review helpful? Yes No

  • Jerry S.
  • 7/29/2015 2:48:25 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsNot the most reliable modem

This review is from: ZyXEL BRG35503 DOCSIS 3.0 Residential Cable Modem Up To 160 Mbps Down and 120 Mbps Up RJ-45, Gigabit Ethernet DOCSIS 3.0, 2.0 and 1.1, Euro-DOCSIS 3.0

Pros: Price - cheaper than other brand name ones.

Cons: Worked for few months.

Then about 4-5 months in started overheating, dropping connection left and right and requiring resets. The problem gets worse 8-9 months in requiring multiple resets a day. And today, 10 months into purchasing, it just flat out died with no chance for revival. Not gonna bother with warranty (not that they even offered one).

Other Thoughts: This modem would be good to give for free to say students and tenants. But if you want something that actually last, just get a brand name one.

Did you find this review helpful? Yes No

  • MOHAMMAD H.
  • 7/27/2015 8:32:19 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsGARBAGE

This review is from: ZyXEL BRG35503 DOCSIS 3.0 Residential Cable Modem Up To 160 Mbps Down and 120 Mbps Up RJ-45, Gigabit Ethernet DOCSIS 3.0, 2.0 and 1.1, Euro-DOCSIS 3.0

Pros: 1

Cons: 0

Other Thoughts: Broke down less than 6 months.

0 out of 1 people found this review helpful. Did you? Yes No

  • Robert N.
  • 7/26/2015 7:47:56 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggscable modem

This review is from: ZyXEL BRG35503 DOCSIS 3.0 Residential Cable Modem Up To 160 Mbps Down and 120 Mbps Up RJ-45, Gigabit Ethernet DOCSIS 3.0, 2.0 and 1.1, Euro-DOCSIS 3.0

Pros: Works great with Comcast for me, got them to stop urging me to docisis 3.0
Fast Speeds.
Reliable, haven't ever had to reset it, in probably about 6 months of ownership.
Price was much better than most 3.0 alternatives.
Looks nice sitting under my tv?

Cons: Gets a little warm but I would imagine most cable modems do, just keep it in a well ventilated area. Has not been an issue for me.

Other Thoughts: For the price I really don't think you can go wrong. Its been just fine for my needs.

Did you find this review helpful? Yes No

  • FREDERICK B.
  • 6/21/2015 7:52:02 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsDon't waste your Time or Money

This review is from: ZyXEL BRG35503 DOCSIS 3.0 Residential Cable Modem Up To 160 Mbps Down and 120 Mbps Up RJ-45, Gigabit Ethernet DOCSIS 3.0, 2.0 and 1.1, Euro-DOCSIS 3.0

Pros: Cheap. Doesn't work, but at least I didn't lose TOO much money.

Cons: First one was DOA. No connectivity, after an hour with Comcast, and them unable to ping the modem. Returned it, same exact issue with the second one. Status light will never stop blinking. I run my own IT consulting firm, so I know what I'm doing.

Other Thoughts: This was a gift to my dad to use in his new house. Now I have to return it AGAIN, but won't be asking for a new one, just my money back.

2 out of 3 people found this review helpful. Did you? Yes No

  • Debasish C.
  • 6/19/2015 8:00:56 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsModem didn't work. worst experience with newegg

This review is from: ZyXEL BRG35503 DOCSIS 3.0 Residential Cable Modem Up To 160 Mbps Down and 120 Mbps Up RJ-45, Gigabit Ethernet DOCSIS 3.0, 2.0 and 1.1, Euro-DOCSIS 3.0

Pros: The modem no longer works with Comcast. Called Comcast and they confirmed that they are getting lot of issues for this modem. Comcast sent a technician and charged $40 for that. The manufacturer replaced the modem but the replacement didn't work. Informed newegg about the issue. As it was after 30 days return period they asked me to sell it online. Why should I sell something that does not work? Who would buy? The manufacturer asked me to contact the seller. The manufacturer can't refund because they don't have my money. The seller does. Sent multiple emails to newegg but they don't care about customer satisfaction any more. Sharing my experience so that the reader of this review can save time and money.

Cons: Modem is not compatible

Other Thoughts: Please save your money

4 out of 4 people found this review helpful. Did you? Yes No

  • Justin M.
  • 6/11/2015 8:59:37 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDisconnects every few hours

This review is from: ZyXEL BRG35503 DOCSIS 3.0 Residential Cable Modem Up To 160 Mbps Down and 120 Mbps Up RJ-45, Gigabit Ethernet DOCSIS 3.0, 2.0 and 1.1, Euro-DOCSIS 3.0

Pros: Cheap

Cons: After activation with Comcast, this modem worked fine for a few days, but then the connection would stop. When I checked the modem, there's a blinking status light (4th light in the front) and it won't re-connect until it's manually rebooted (look on Comcast's site for people providing the best reboot sequence for this modem). After this, it would only connect for half a day or so until the same thing happened again. Re-activating my old Motorola DOCSIS 2.0 modem would show no problems, so I'm pretty sure the Zyxel modem is not working properly. Looking around online, you'll find several reports of people with the same problem.

1 out of 1 people found this review helpful. Did you? Yes No

  • Jared H.
  • 6/10/2015 7:24:38 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsGarbage

This review is from: ZyXEL BRG35503 DOCSIS 3.0 Residential Cable Modem Up To 160 Mbps Down and 120 Mbps Up RJ-45, Gigabit Ethernet DOCSIS 3.0, 2.0 and 1.1, Euro-DOCSIS 3.0

Pros: Worked right out of the box on Comcast network after making a quick call with the MAC address. Smooth sailing for a couple months.

Cons: Stopped working after 2.5 months. Exactly as another review states, all lights are solid except for the blinking status light. This is not an issue on the ISP end...the modem is dead.

Other Thoughts: Bought to save a few bucks over the Motorola that's compatible with Comcast. You get what you pay for.

Did you find this review helpful? Yes No

  • Min J.
  • 6/6/2015 12:56:24 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsworked good for about 4 months

This review is from: ZyXEL BRG35503 DOCSIS 3.0 Residential Cable Modem Up To 160 Mbps Down and 120 Mbps Up RJ-45, Gigabit Ethernet DOCSIS 3.0, 2.0 and 1.1, Euro-DOCSIS 3.0

Pros: cheap, and works good while it was alive.

Cons: short lived. Only worked for about 4 months. Then suddenly died at mid night last night. All other lights are solid, while the "Status" is blinking. Thought it was a Comcast cable problem. Called them and they dispatched a technician this morning. He tested my connection with two other modems (one DOCSIS 2.0, one 3.0) works but this ZyXEL is dead.
Poor quality. Don't recommend buying it. Wonder if we could get it replaced by the manufacturer.

Did you find this review helpful? Yes No

  • Ryan H.
  • 5/18/2015 9:43:41 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDon't bother

This review is from: ZyXEL BRG35503 DOCSIS 3.0 Residential Cable Modem Up To 160 Mbps Down and 120 Mbps Up RJ-45, Gigabit Ethernet DOCSIS 3.0, 2.0 and 1.1, Euro-DOCSIS 3.0

Pros: Worked for 6 mos

Cons: Worked for ONLY 6 mos.

Other Thoughts: Cheap. It worked fine with Comcast but died 6 mos in. Three attempts with Comcast tech support, including a home visit, were unsuccessful. Comcast's assessment was that the modem failed. Other troubleshooting sequences were unsuccessful. Unable to ip in after failure. As others have indicated: its junk, don't bother

Did you find this review helpful? Yes No

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Item#: N82E16825188005
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