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ZyXEL > 
Item#: N82E16825188005

ZyXEL DOCSIS 3.0 Residential Cable Modem Compatible with Comcast Network (BRG35503)

  • Certified for use on Comcast's network
  • DOCSIS 3.0 compliant
  • Full-featured compact, economical cable modem with Ethernet port
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Learn more about the ZyXEL BRG35503

Model

Brand
ZyXEL
Model
BRG35503

Spec

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.

Quick Info

Warranty

  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years


Customer Reviews of the ZyXEL BRG35503

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  • Mark M.
  • 7/28/2014 7:29:15 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsWorse than refurb

Pros: Worked with Cox Communications broadband cable Internet

Cons: Too hot to handle, after a few weeks it now requires a reboot every 1-2 days.

Did you find this review helpful? Yes No

  • Jeffrey V.
  • 7/21/2014 4:56:01 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsNot compatible with Comcast Blast! in WA

Pros: I would guess it is a fine modem.

Cons: It is not compatible with Comcast Blast! in WA.

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

  • Daniel J.
  • 7/20/2014 8:19:29 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat product

Pros: Very easy to setup, same as any modem.
Cheap

Cons: Isn't as cosmetically appealing but who really cares? It's just a modem

Other Thoughts: I'm currently with Comcast and it worked right away once the Comcast was turned on.

Did you find this review helpful? Yes No

  • Yiyuan H.
  • 7/17/2014 8:09:35 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGood enough for Comcast

Pros: Cheap, and work well
After reading review on newegg, the moment I un-boxed it, I change the network to IPv4. But still the activation process did not work smoothly, so I had to call Comcast and talk to a tech to troubleshoot, but with 5-10 minutes, I am online.
I am getting 20.89MB down stream and 8.52MB upload.

Cons: None

Did you find this review helpful? Yes No

  • Selvam R.
  • 7/12/2014 4:30:54 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggs

Pros: Nothing to mention as Pros

Cons: First of all, this modem design is too poor to release as product. I bought this modem first time, it died within an hour, then i spoke to Newegg for replacement, as they take long time for replacement, i opted for refund. i ordered another same modem, it worked for 10 days and died with lot of issues. there will be always intermittent internet disconnect issues. i spent lot of time with Comcast by trusting this modem is good. Finally I changed to Motorola modem. Now I am seeing good internet connectivity.
Some time the issue can be for one modem, but I tried with two modems and the issues are same and it died within short span. I won’t trust this manufacturer or the product any more for future use. Unnecessarily I took lot of tension due to this modem.

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

  • Anonymous
  • 7/11/2014 6:13:19 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWorks with Time Warner Cable

Pros: - Works find with Time Warner Cable in NYC
- Good price

Cons: Nothing

Did you find this review helpful? Yes No

  • Anonymous
  • 7/9/2014 8:22:09 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWorks very well

Pros: Price and the speed

Cons: It's a bit warm to the touch, but similar to an old Motorola modem.

Other Thoughts: Works just fine with Comcast. Didn't need to change the router settings to IPV4 either as other reviewers suggested. On Comcast Blast i'm reporting 57/11 consistently. Comcast CSR only needed make/model/SN/MAC of the unit. After that it was working within minutes.

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

  • Robert J.
  • 7/8/2014 4:55:31 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsExcellent Modem for Comcast

Pros: Rock stable, works great.

Cons: It took an hour and a half on the phone with three different Comcast reps to get it provisioned, but that's not the modems fault.

Other Thoughts: I got tired of paying Comcast $8 a month for their gateway which didn't work well anyway so when I saw this on sale I ordered it. I paired it with a Rosewill RNX-N300RT router and a Rosewill RC-410LX Gigabit switch. This setup works MUCH better than either the Arris TG862G or SMC SMCD3GNV Comcast had rented me. I'm on the Performance (25/5) tier and consistently get 27/6.

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

  • Anonymous
  • 7/1/2014 5:42:13 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsModem Dead on Arrival

Pros: Great cable modem on paper - nice specs, good price point

Cons: Spent 3 hours with Comcast L2 support until they concluded there was an issue with the modem transmit power. Hooked up my old modem and was back online in 5 mins. It is clear ZyXEL has quality control issues.

Other Thoughts: I just RMA'ed the modem and will provide an update once I receive the replacement from Newegg.

Did you find this review helpful? Yes No

  • Marta I.
  • 7/1/2014 10:34:13 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsWorks great, must change a setting prior to activation

Pros: Seems to work reliably. I have a 25mbps download / 5 mbps upload, and I have no problem achieving both. I have only owned it for about a week, so I will have to update if the device fails.

Cons: Unit is very warm to the touch, which means to me that it is an inefficient design, and potentially prone to overheating. Wouldn't connect to Comcast internet right out of the box - had to change a setting first, which was not documented.

Other Thoughts: The modem configuration screen (192.168.0.1) has an option for MDD IP Mode. I changed it to IPv4 Only, and Comcast was able to activate the device. Comcast lists it as IPv4 only, even though the device is technically capable of IPv6. Comcast activation dept had no information on this device. They definitely had no information about changing the MDD IP setting.

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

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ZyXEL > 
Item#: N82E16825188005
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