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Motorola > 
Item#: N82E16825390004

Motorola Surfboard Extreme SBG6782-AC DOCSIS 3.0 Cable Modem and AC1750 Dual Band Gigabit Wi-Fi Router

  • DOCSIS 3.0 Cable Modem
  • Download speeds up to 343 Mbps, upload speeds up to 131 Mbps
  • 802.11AC Wi-Fi Router speeds up to 1750 Mbps.
  • 4 in 1: Modem, Wireless Router, MoCA Network and Gigabit Switch
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SBG6782-AC SURFboard DOCSIS 3.0 Cable Modem 10/100/1000Base-T Ethernet (RJ-45)

Motorola's SBG6782U-AC Wireless Gateway powers the delivery of today's innovative, ultra-broadband services both in and around consumers' homes. Using 802.11ac technology, the SBG6782U-AC provides consumers with the fastest Wi-Fi® available on the market today. Easy to setup and use, the SBG6782U-AC's advanced feature set includes sophisticated, DOCSIS 3.0 channel bonding and best-in-class RF immunity, which delivers the speed and reliability demanded by today's smart home applications. Equipped with such features as a Wi-Fi pairing button and user-friendly, online diagnostics and configuration, the SBG6782U-AC is as easy to setup as it is to use.

Best in Class Wi-Fi® Performance

  • Dual Concurrent Radios with theoretical wireless throughput of over 3 Gbps
  • High Power MIMO Antennas provide connectivity over 450'
  • Uninterrupted streaming video
  • Lightning speed gaming
  • Maintains performance, even when supporting multiple network users



Four Products. One Device.

  • DOCSIS 3.0 Cable Modem
  • 802.11ac WiFi Router
  • 4-Port Gigabit Ethernet Router
  • MoCA® Networking for Smart Devices

What is a DOCSIS 3.0 Modem?

  • DOCSIS is the technology used by Cable Operators to provide Internet access via the modem.
  • DOCSIS 3.0 is the latest version of that technology, providing download speeds up to 343 Mbps!

Why 802.11ac WiFi?

  • Speed: It's the fastest wireless technology available today, providing up to 1800 Mbps!
  • Coverage: A 3x3 antenna array provides whole-home coverage
  • Convenience: Using BeamForming Technology, the wireless signal follows you around the house!

What's so special about a Gigabit Ethernet 4-Port?

  • A 4-Port Ethernet hub supports multi-device networking.
  • And it enables high-speed connectivity for lightning fast streaming needs.

What is MoCA®?

  • MoCA® is a technology that allows you to create a wired connection where there may not be one today.
  • Using the existing cable wiring in your home, MoCA® creates a high-speed wired Ethernet network.

Why MoCA®?

  • It provides the speed and reliability of a wired connection for things like online gaming and HD video streaming.
  • No interference from other devices, no hiccups, jitter or lag time.
  • Plus, it frees up your wireless network for things like email and surfing the web.


  • The SBG6782-AC is compatible with major U.S. Cable providers such as Comcast/Xfinity, Cox, and Cablevision.
  • Also, it works on the latest IPv6 Internet standard, which allows for multiple, simultaneous browsing sessions on multiple devices.


Easy to Setup and Use

  • Plug-and-play installation
  • Wi-Fi® pairing button for easy Wi-Fi Protected Setup™ (WPS) Wi-Fi connection
  • Android App for Wi-Fi Connection Assistance
  • Supports standard Internet browser software
  • Front panel, multicolor LEDs indicate status and simplify troubleshooting
  • User-friendly online diagnostics and configuration

Advanced Services Ready

  • DOCSIS 3.0
  • Channel bonding of up to eight downstream and four upstream channels; capable of data rates of over 340 Mbps for Internet connectivity in the received (downstream) data stream and over 100 Mbps in the send (upstream) data stream
  • 1 GHz-capable tuner
  • Best-in-class RF Immunity, built into Motorola SURFboard products since 2006, protects against potential service impacting interference
  • Supports both IPv4 and IPv6
  • Includes MoCA® 1.1 for distribution of multimedia services to other MoCA-enabled devices
  • Beamforming support for optimal Wi-Fi® delivery
  • Versatile and Convenient
  • Backwards compatible to 802.11a/b/g/n
  • Backwards compatible to DOCSIS 1.x and 2.0
  • Integrated 2.4 GHz 802.11n and 5 GHz 802.11ac Wi-Fi® access point, concurrent radio operation
  • 3x3 MIMO antenna arrays offer performance benefits for wireless LAN (WLAN) access points
  • High-gain Wi-Fi® output, +26 (2.4 GHz radio) and +23 (5 GHz radio) dBm added for optimized throughput over a greater range
  • Four-gigabit Ethernet ports enable flexible, high-speed connectivity with Auto Negotiate and Auto MDIX
  • Support for Multicast IP services
  • Support for multiple Guest SSIDs for segregated networks
  • MoCA reject filter ensures care-free interoperation between MoCA and DOCSIS
  • Internal power supply eliminates bulky transformers

Reliable and Secure

  • WEP/ WPA/WPA2 Wi-Fi® security
  • Advanced firewall with DoS protection and intrusion prevention
  • Enhanced security: supports AES traffic encryption


  • Increases user satisfaction with additional wireless throughput, reach, range, and robustness
  • Extended range capability reduces client device disconnects or poor service due
  • Supported by Motorola's highly rated Consumer Support
Cable Interfac F-Connector, female 75 O
Network Interface Four one-gigabit (10/100/1000) Ethernet ports
2.4 Wi-Fi Interface 802.11n Wi-Fi (also certified for 802.11a/b/g)
5 GHz Wi-Fi Interface 802.11ac Wi-Fi (also certified for 802.11 a/b/g/n)
Regulatory RoHS compliant, FCC, UL listed (U.S. and Canada),
Industry Canada, EnergyStar, VCII, JATE
DOCSIS 3.0 Bonding capability of 8 downstreams and 4 upstreams
MoCA 1.1 Share cable interface F-Connector
Dimensions 8.8 (h) x 2.1 (w) x 10.1 (l) in (224 x 54 x 256.5 mm)

Learn more about the Motorola SBG6782-AC




Modem Router Combo
Network Interface: Four one-gigabit (10/100/1000) Ethernet ports
2.4 Wi-Fi Interface: 802.11n Wi-Fi (also certified for 802.11a/b/g)
5 GHz Wi-Fi Interface: 802.11ac Wi-Fi (also certified for 802.11 a/b/g/n)
Cable Interface
F-Connector, female


Four Products. One Device.
DOCSIS 3.0 Cable Modem
802.11ac WiFi Router
4-Port Gigabit Ethernet Router
MoCA Networking for Smart Devices

PC: Windows XP, Windows 7, Windows 8, (older versions of Windows, although not specifically supported, will work with this cable modem), UNIX, Linux
Macintosh: Power PC or later; OS 10 or higher
Home Networking Ethernet router and wireless access point

Dimensions 8.8 (h) x 2.1 (w) x 10.1 (l) in (224 x 54 x 256.5 mm)
DOCSIS 3.0: Bonding capability of 8 downstreams and 4 upstreams
MoCA 1.1: Share cable interface F-Connector

Input Power
North America 105 to 125 VAC, 60 Hz
Internal Power Supply 50W/12Vdc

Power Management: 802.11e WMM power save/U-APSD (Unscheduled-Automatic Power Save Delivery), 802.3az EEE

DOCSIS Downstream: Modulation 64 or 256 QAM
Bandwidth: Full bandwidth capture window 108 MHz - 1002 MHz

Maximum PHY Rate
DOCSIS: 343.072 Mbps (8 channels) / 42.884 (single channel) @ 256 QAM at 5.36 Msym/s
EuroDOCSIS: 444.928 Mbps (8 channels) / 55.616 (single channel) @ 256 QAM at 6.952 Msym/s

Symbol Rate: 64 QAM 5.057 Msym/s; 256 QAM 5.361 Msym/s
Operating Level Range -15 to 15 dBmV
Frequency Range 108 - 1002 MHz (edge to edge)
Frequency Plans: DOCSIS Annex B
Security: DOCSIS 3.0 Security (BPI+, EAE, SSD)
IPv6 (dual stack)
DS Lite

DOCSIS Upstream
Modulation QPSK and 8, 16, 32, 64, 128, 256 QAM
Maximum PHY Rate @256 QAM at 6.4 MHz
122.8 Mbps: 4 channels
30.72 Mbps: single channel
Channel Width 200 kHz, 400 kHz, 800 kHz, 1.6 MHz, 3.2 MHz, 6.4 MHz
Symbol Rates 160, 320, 640, 1280, 2560, 5120 ksym/s
Frequency Range 5-42 MHz (edge to edge)

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the Motorola SBG6782-AC

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  • Joe W.
  • 8/17/2014 5:48:32 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsPretty nice package

Pros: 1 Plug 3 devices.

Easy setup with Atlantic Broadband in Western PA/NY

Much faster than my previous modem.

Wireless is acceptable

Cons: 1 Plug 3 devices, single point of failure. Wireless is acceptable but not stellar.

Other Thoughts: Having an all in one can be trouble... on portion fails most likely it all fails would not suggest for a business. But mine has not failed to this point.

Wireless is okay. Not great but acceptable for my situation.

my previous modem was maxed at 15mbps, when I put this on and talked to my provider (atlanticbb) I upgraded to their max (75mb) Tested with some quality sites and saw a few downloads peak at 8.4MBps.. probably some compression there. Speed tests show i get as advertised.

When setting up with your provider disable MOCA until your provider gives you the okay. I was told (didn't confirm) that it could cause problems if the provider is not setup to block the outgoing signal though they have filters to correct this.

Over all so far happy with it. I am upset the price dropped shortly after i ordered though.

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

  • Adam C.
  • 8/13/2014 1:42:04 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsAwsomeness

Pros: It is an all in one unit. There is a lot of tweaking capabilities that this thing can do. I bought this to replace a Motorola SBG6580 SURFboard Wireless that I was renting from my provider. Service was always an issue with that modem. Put this new guy into place and my service was so much faster and more stable wired or wireless, and that is saying a lot considering my provider (Cableone). Anybody I meet now and we get to talking about Internet I immediately tell them about this modem.

Cons: None yet.

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

  • 8/2/2014 4:58:23 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day

3 out of 5 eggsthe log in default

Pros: the default log in is
user admin
pass motorola
NOT WHATS IN THE BOOK, admin / password

Cons: also im having slow slow dns issues with this now
im working on it...

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

  • Anonymous
  • 7/13/2014 8:35:36 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsStay Away

Pros: This is supposedly an amazing product, if and when it works.

Cons: Rate of failure is too high and there is little to no product support for this.

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

  • Donald C.
  • 5/14/2014 11:24:34 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsSolid Cable Modem

Pros: It was easy to setup. It supports both newer and older Wifi enabled devices.
It is compatible with both Time Warner and Comcast. Confirmed on their pages.
Its nice not to rent an old, refurbished modem from TWC. It will take a while to pay for itself, but it will come

Cons: Wish it had mounting holes so it would not have to sit on the floor or desktop.

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

  • Richard M.
  • 5/7/2014 9:49:23 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsNot for me

Pros: All in one Cable Modem, Wireless & 4 Port Wired Router. Latest specs and setup was nice and easy. Nice GUI, found all the settings I needed to change without and problems. Fast setup, Rock solid. Great WiFi power all over large ranch style house.

Cons: A bit bigger than I thought it would be. White is not the best color to "hide" unit. Not mine. I installed this unit for a client who was replacing junk company ones yearly from the cable company. Oh he was paying rent for them too. Now that is done and so far it is working perfectly.

Other Thoughts: Overall I would not hesitate to by this unit again. Matter a fact, I am sure I will. Maybe I'll paint mine black.

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

  • Anita S.
  • 4/23/2014 6:25:33 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat!

Pros: Upgraded found the stock modem Timewarner gives you. couldnt stream or game without lag and disconnects. This however allows us to stream and game or two or more tvs/computers without lag, also the disconnects have stopped. The wifi is nice. cant say much about it because my computer only has a up to 300 MB wifi receiver

Cons: On the large side

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

  • Matthew W.
  • 4/17/2014 2:30:35 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

4 out of 5 eggsLarge and powerful

Pros: - I love that it's a router and cable modem in one.
- The power supply is built in, so no power brick. It runs fairly cool (maybe because its so big, its a giant)
- The signal strength is good, especially in 5Ghz, which has a hard time going through walls, so now range is better.
- Easy automated activation on Comcast

Cons: - It's large. I had to adjust a shelf so it would have enough head room to breathe.
- It's white. Are we going back to that color again? Most of my other electronics are black, except for my WD Cloud. I think there should be an option for white or black.
-This modem/wireless router seems to have the same issue (and firmware) as the 6580 which I recently replaced for this 6782-AC. It tends to randomly lose internet connection with older devices in the 2.4Ghz band.

Other Thoughts: I bought this at a big box store where the buy is the best, because I wanted it quick :)
- None of the cons of this modem are a deal breaker, but I do wish I could have bought this in black.
- And because with the increased range in 5Ghz I don't even use 2.4G anymore so that firmware issue isn't a problem for me.
- The large size is good for better ventilation and it's a good couple pounds so it's not going to slide around

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

  • Mickel R.
  • 3/25/2014 9:04:24 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsModem upgrade only

Pros: Modem is better then my last one. Latency is lower up to 10 to 20% in online gaming.

Cons: WIFI part of this modem drops constantly. Setup was easy. Put everything on 802.11n for better stream, singled out everything on a different channel to keep down interference. Buffering is bad with this Wi-Fi-modem.

Other Thoughts: Was on line with the Tech in a live chat, told him the problem I was having and he told me at the end of the conversation to send it back and get there modem only or just shut off the WI-FI side of this modem and buy a router that worked better. WOW, 200.00 plus dollars for nothing, just a high priced modem is all I got for my trouble. This is what they think of the working man. If I had bought a 1000 of the modems probably would have had a little more respect.

4 out of 8 people found this review helpful. Did you? Yes No

  • Mickel R.
  • 3/14/2014 6:51:51 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsbest upgrade modem you can find

Pros: ran speed test to Baton Rouge, Atlanta, Oklahoma city, San Diego, Dallas. Downloads boosted by 10% in most cases, but the thing I notated the most was the reduction in latency, almost 10 to 20 in every market from one end to the other. Being a gamer this alone was the best part. Started with a Cisco Cable Modem DPC 3010. Surfboard is out performing what I had. To its all about the latency.

Cons: none as of yet. Will look very closely to see if hardware stays up to the level it claimed.

Other Thoughts: was not sure about WIFI and speed that it claimed to have, but when I hooked up Netflix and smartphones it smoked the Linksys E3000 WIFI I had set with old modem.

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

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Item#: N82E16825390004
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