Amazon Renewed
Amazon Renewed NETGEAR Nighthawk Cable Modem with Built-in WiFi 6 Router (CAX80)
Bottom line: The NETGEAR Nighthawk Cable Modem with Built-in WiFi 6 Router: DOCSIS 3.1 modem and AX6000 WiFi 6 router in one box; main trade-off: renewed unit, not new retail stock.
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Pros & Cons
Pros
- ✓ DOCSIS 3.1 modem and AX6000 WiFi 6 router in one box
- ✓ Supports cable internet plans up to 6Gbps with 32x8 channel bonding
- ✓ 2.5 Gig multi-gig port usable as LAN or internet
- ✓ Two-port aggregation delivers up to 2Gbps wired
- ✓ Covers up to 2,500 sq. ft. and 30 concurrent devices
Cons
- ✗ Renewed unit, not new retail stock
- ✗ No support for bundled cable voice or phone service
- ✗ Not compatible with Verizon, AT&T, CenturyLink or DSL
- ✗ Dual-band only, with no 6GHz WiFi 6E band
Manufacturer description
The NETGEAR Nighthawk CAX80 combines a DOCSIS 3.1 cable modem and an AX6000 dual-band WiFi 6 router in one unit, so you can return the modem and router you rent from your ISP. This is a renewed unit sold through Amazon Renewed. It works with major cable providers including Xfinity, Spectrum and Cox, and supports cable plans up to 6Gbps with 32x8 channel bonding. The WiFi 6 radios cover up to 2,500 sq. ft. and handle up to 30 devices at once, which suits a busy home full of phones, TVs and consoles. For wired connections you get four 1 Gig Ethernet ports, one 2.5 Gig multi-gig port that works…
SpecPicks Verdict
SpecPicks scored NETGEAR Nighthawk Cable Modem with Built-in WiFi 6 Router using a rating × review-volume × price-fit model applied to published specs and reviews across the networking category. Amazon Renewed's networking lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for networking of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will the NETGEAR CAX80 work with Xfinity or Spectrum?
Yes. The CAX80 works with major cable providers including Xfinity, Spectrum and Cox. It supports cable plans up to 6Gbps through DOCSIS 3.1 and 32x8 channel bonding.
Can I use the CAX80 with Verizon Fios or AT&T internet?
No. It is a cable modem, so it does not work with Verizon, AT&T, CenturyLink, DSL providers, DirecTV or DISH.
Does the CAX80 support my cable company's home phone service?
No. NETGEAR states it does not support any bundled voice service. If your cable plan includes a landline phone, keep the provider's voice modem or choose a modem with voice support.
How do I get more than 1Gbps over a wired connection?
Use the 2.5 Gig multi-gig port, or combine two Ethernet ports with link aggregation for up to 2Gbps. You also get four 1 Gig Ethernet ports and a USB 3.0 port.
What warranty comes with a renewed CAX80?
Renewed coverage is set by the Amazon Renewed program, not the new-product terms. Check the product listing for current warranty and return terms before you buy.
Key Features
- Compatible with major cable internet providers including Xfinity, Spectrum, Cox and more. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service. Best for cable provider plans up to 6Gbps
- Coverage up to 2,500 sq. ft. and 30 concurrent devices with dual-band WiFi 6 (AX6000) speed (up to 6Gbps)
- 4 X 1 Gig Ethernet ports, 1 x 2.5 Multi-gig LAN or internet port and 1 USB 3.0 port for computers, game consoles, streaming players and more. Maximize your internet speeds with 2-port aggregation to achieve up to 2Gbps for ultra-fast streaming and gaming
- Replaces your cable modem and WiFi router. Save up to $168/yr in equipment rental fees
- DOCSIS 3.1 and 32x8 channel bonding
- NETGEAR routers have security features enabled out of the box with automatic firmware updates, and industry-leading safety features to help protect you and your family
Full Specifications
| Brand | NETGEAR |
|---|---|
| Color | Black |
| Modem Type | Cable |
| Unit Count | 1 Count |
| Connectivity | USB, WiFi |
| Model Number | AX6000 |
| Mfr Part Number | CAX80-100NAS-cr |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Ports | 5 |
| Compatible Devices | Printer |
| Data Transfer Rate | 5 gigabits_per_second |
| Warranty Description | 90 days limited warranty |
| Connectivity Technology | Wi-Fi |
| Number of Ethernet Ports | 2 |
| Internet Service Provider | Xfinity from Comcast, Spectrum, Cox |
| Internet service provider | Xfinity from Comcast, Spectrum, Cox |
| Item Dimensions L x W x H | 8.5"L x 4.3"W x 10.4"H |
| Maximum Upstream Data Transfer Rate | 300 megabits_per_second |
| Maximum Downstream Data Transfer Rate | 3000 megabits_per_second |
| Full listing title | NETGEAR Nighthawk Cable Modem with Built-in WiFi 6 Router (CAX80) - Compatible with All Major Cable Providers | Cable Plans Up to 6Gbps | AX6000 WiFi 6 speed | DOCSIS 3.1 (Renewed) |
Ready to buy?
NETGEAR Nighthawk Cable Modem with Built-in WiFi 6 Router (CAX80) - Compatible with All Major Cable Providers | Cable Plans Up to 6Gbps | AX6000 WiFi 6 speed | DOCSIS 3.1 (Renewed) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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