ARRIS SURFboard SBG6580 Cable Modem Router
- DOCSIS 3.0 cable modem + N300 Wi-Fi router in one
- 8 download, 4 upload channels
- 343 Mbps down, 131 Mbps up modem capacity
- Approved for plans up to 100 Mbps
- Comcast Xfinity, Time Warner, Charter, Cox, Cablevision
- Not for Verizon, AT&T or CenturyLink
- 4 gigabit Ethernet ports, IPv4 and IPv6
- 1 year warranty
Updated 25 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A two in one gateway for cable internet users on modest speed plans who want to stop renting a modem. Fiber and DSL customers cannot use it, and the Wi-Fi is the older single standard.
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ASIN: B0040IUI46Model: SBG6580Category: Modem Router Combos
Overview
Not a standalone modem or a separate router, the ARRIS SURFboard gateway combines a cable modem and a Wi-Fi access point in one box. It connects to the coax line from a cable provider and shares the connection over Wi-Fi and wired Ethernet ports.
One box handles both the modem and the home network, which removes a rental fee line and a second device. Provider approval tops out at modest plan speeds, and the Wi-Fi standard is older than what new laptops and phones support.
Who it's for
Apartments and small homes on Comcast, Cox or Charter cable service at basic speeds get a simple all in one setup. Households paying for faster plans, or on fiber or DSL, should look elsewhere.
Pros and cons
- Modem and router in one box
- Four wired gigabit ports
- Works with major cable providers
- Supports IPv4 and IPv6
- Cable internet only
- Older Wi-Fi standard
- Ships in a plain brown box
Performance notes
Internet speed is capped by the provider approval level rather than the modem channels, so faster plans gain nothing here. Wi-Fi throughput follows the older wireless standard, so wired ports carry the fastest transfers inside the home. The listing notes Wi-Fi will not work with certain providers, so confirm with yours first.
Specifications
| Brand | ARRIS |
|---|---|
| Model | SBG6580 |
| Dimensions & fit | |
| Item weight | 15.04 ounces |
| Item dimensions l x W x h | 5.9 x 1.77 x 6.69 inches |
| Capacity & performance | |
| Max plan speed | 100 Mbps |
| Construction & materials | |
| Color | Black |
| Compatibility & installation | |
| Compatible providers | Comcast Xfinity, Time Warner Cable, Charter, Cox, Cablevision |
| Incompatible providers | Verizon, AT&T, CenturyLink |
| Included components | |
| Included | Router, power cord, Ethernet cable, instructions |
| Warranty & support | |
| Warranty description | 1 year full coverage warranty |
| Other details | |
| Wireless standard | 802.11n, N300 |
| Modem type | Cable |
| Number of ethernet ports | 4 (10/100/1000) |
| Channel bonding | 8 download, 4 upload |
| Docsis version | DOCSIS 3.0 |
| Max downstream | 343 Mbps |
| Maximum upstream rate | 131 Mbps |
| Other special features | IPv4 and IPv6 |
| Frequency | 108 to 1002 MHz (DOCSIS) |
| Security features | Firewall |
Frequently asked questions
What comes in the box with the ARRIS SURFboard SBG6580?
The description says it ships in a wholesale brown box with the router, a power cord, an Ethernet cable and instructions only. Drivers and install wizards are online.
Will the ARRIS SBG6580 work with Verizon Fios or AT&T?
No. It is not compatible with Verizon, AT&T or CenturyLink. It needs cable internet service.
What internet plan speeds is the SBG6580 approved for?
Plans up to 100 Mbps.
Do I still need a separate router with the SBG6580?
No. It combines a DOCSIS 3.0 cable modem with an N300 Wi-Fi router and 4 gigabit Ethernet ports.
Will the Wi-Fi work on every provider?
The listing warns that Wi-Fi will not work on certain providers. Call your provider if it is not on the compatible list.