NETGEAR C7800 Cable Modem Router
- DOCSIS 3.1 cable modem, works with DOCSIS 3.0
- AC3200 dual-band 802.11ac WiFi 5
- Up to 3000 square feet listed coverage, 3 fixed antennas
- 1 Gbps data rate, 246 Mbps max upstream
- 512 MB RAM
- WPA-PSK and WPA2-PSK security, basic firewall
- 1 year warranty
Updated 25 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A combined cable modem and dual-band router for a home on a cable internet plan that wants to own its gateway. The port details in the listing are thin, so wired-heavy setups should confirm the port count and speed first.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B01I8KA48GModel: C7800-100NASCategory: Modem Router Combos
Overview
NETGEAR builds the Nighthawk cable modem router as a single box that connects to a cable internet line and spreads dual-band WiFi through the home. It also offers Ethernet for wired devices and an app for setup and control.
Folding the modem and router into one unit replaces two boxes and a cable in the setup, and DOCSIS support covers faster cable plans. Its listing calls it an old model and gives a thin port description, so check that your cable provider supports it before buying.
Who it's for
Homes on cable service with phones, consoles and streaming boxes get one box for the modem and the wireless network. Fiber and DSL subscribers, and offices that need a large wired switch, will not get use from it.
Pros and cons
- Modem and router in one box
- DOCSIS support for gigabit cable plans
- Dual-band WiFi for many devices
- App control for setup and changes
- Cable internet only, not fiber or DSL
- Listed as an old model
- Port count and port speeds unclear in listing
- Basic firewall security level
Performance notes
Wireless speed and reach depend on distance and walls between the router and each device, since the antennas are fixed and cannot be aimed. The modem side can only deliver the speed of the subscribed cable plan, so the wireless rating is a ceiling, not a promise. Placing the unit centrally in the home matters more than any setting.
Specifications
| Brand | NETGEAR |
|---|---|
| Model | C7800-100NAS |
| Dimensions & fit | |
| Item weight | 3.2 pounds |
| Compatibility & installation | |
| Connectivity protocol | DOCSIS 3.1, Wi-Fi (802.11ac) |
| Ram memory installed | 0.512 GB |
| Warranty & support | |
| Warranty description | 1 year |
| Other details | |
| Data transfer rate | 1 Gbps |
| Wi-Fi generation | WiFi 5 |
| Maximum upstream data transfer rate | 246 Mbps |
| Security protocol | WPA-PSK, WPA2-PSK |
| Number of ports | 3 |
| Antenna type | Fixed |
| Number of antennas | 3 |
| Control type | App |
| Router network type | Cable |
| Frequency band class | Dual-Band |
| Coverage | Up to 3000 square feet |
| Router firewall security level | Basic |
Frequently asked questions
Does the NETGEAR C7800 work with fiber or DSL internet?
No. Its listed network type is cable, and it is built around DOCSIS cable standards. Fiber and DSL lines need different equipment.
How many wired ports does the NETGEAR C7800 have?
The listing gives three ports in total without breaking them into types, and it states a LAN port bandwidth of 10/100 megabits per second. Confirm the port layout with NETGEAR if wired speed matters.