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ANSWERED: Comcast Modem Wireless Gateway Device/Feature Comparison
Xfinity Gateways and xFi Gateways are all-in-one devices that deliver internet and voice connectivity, whole-home WiFi coverage, network security, control and speed for the ultimate connected experience.
General features of our latest devices, the xFi Advanced Gateways, include:
- Secure wireless home network with xFi Advanced Security
- Secondary Xfinity Hotspot network
- Exclusive WiFi management tools and Parental Controls (xFi)
- Extended whole-home coverage with xFi Pods
- Up to 1 Gigabit (Gb) speeds or more, depending on the model
- Internet connectivity through Ethernet connection (two or four ports)
- Connection for one to two phone lines
- Regular automatic updates to improve speed, coverage, control and security
Find out more about the benefits of renting an xFi Gateway.
Xfinity Gateway Models
We are always improving our equipment, and we recommend updating your device every two to three years in order to get the most out of your Xfinity Internet subscription. For specific details on all of our available gateway models, please see below.
Note: Looking for your gateway model number? Review the equipment’s bottom panel, visit your Devices page on xfinity.com or use the Xfinity app.
XFI ADVANCED GATEWAY (XB8)
The latest generation xFi Advanced Gateway allows you to supercharge your home with supersonic WiFi.
- It’s super-fast at handling multi-Gig speeds, capable of powering hundreds of devices at once and has three times the bandwidth for more reliable connections.
- It blocks billions of threats annually with Advanced Security and is made to do anything, so you can do everything.
- Learn more about this new gateway.
- Model Numbers: CGM4981COM
- Friendly Model Name: XB8
- Gb Ethernet Ports: 4
- Tri-Band WiFi Option: Yes
- 2.4GHz Connected Client Limit: 100
- 5GHz Connected Client Limit: 100
- 6GHz Connected Client Limit: 100
- Maximum Data Throughput: 2.5 Gbps
- WPS (WiFi Protected Setup): Yes
- Gateway / Network Management Tool (http://10.0.0.1): Yes
- Xfinity xFi Eligible: Yes
- Xfinity xFi Advanced Security: Yes
- Xfinity app Activation: Pro-Install until April 2022
- Two Total Telephone Ports: Yes (separate Alarm Port)
- Battery Backup Capability (Xfinity Voice Only): Yes
- The xFi Advanced Gateway (XB7 and higher) is the only device currently offering a backup battery for purchase (non-EPON)
- Link Cordless Phones (CAT-iq 2.0*): Yes
- Home Hotspot Capable: Yes
- Compatible with Xfinity Home Pro Protection: Yes
- Compatible with Xfinity Home Self Protection: Yes
View and Download xFi Advanced Gateway (XB8) Resources:
XFI ADVANCED GATEWAY (XB7)
Our xFi Advanced Gateway (XB7) offers a new colorway (white/gray) to compliment your home decor, including a less disruptive LED light. It also has the fastest speeds, more ports, the widest coverage, exclusive WiFi management tools, Parental Controls and xFi Pods for extended coverage.
- Model Numbers: CGM4331COM and TG4482A
- Friendly Model Name: XB7
- Gb Ethernet Ports: 4
- Dual-Band WiFi Option: Yes
- 2.4GHz Connected Client Limit: 75
- 5GHz Connected Client Limit: 75
- Maximum Data Throughput: 2.5 Gbps
- WPS (WiFi Protected Setup): Yes
- Gateway / Network Management Tool (http://10.0.0.1): Yes
- Xfinity xFi Eligible: Yes
- Xfinity xFi Advanced Security: Yes
- Xfinity app Activation: Yes
- Two Total Telephone Ports: Yes (separate Alarm Port)
- Battery Backup Capability (Xfinity Voice Only): Yes
- The xFi Advanced Gateway (XB7 and higher) is the only device currently offering a backup battery for purchase (non-EPON)
- Link Cordless Phones (CAT-iq 2.0*): Yes
- Home Hotspot Capable: Yes
- Compatible with Xfinity Home Pro Protection: Yes
- Compatible with Xfinity Home Self Protection: Yes
View and Download xFi Advanced Gateway (XB7) Resources:
XFI ADVANCED GATEWAY (XB6)
Our xFi Advanced Gateway offers up to 1Gb speeds, wide coverage, exclusive WiFi management tools, Parental Controls and xFi Pods for extended coverage. Its attractive design lends itself to being positioned in a central open area for best broadcasting.
- Model Numbers: TG3482G and CGM4140COM
- Friendly Model Name: XB6
- Gb Ethernet Ports: 2
- Dual-Band WiFi Option: Yes
- 2.4GHz Connected Client Limit: 30
- 5GHz Connected Client Limit: 75
- Maximum Data Throughput: 1 Gbps
- WPS (WiFi Protected Setup): Yes
- Gateway / Network Management Tool (http://10.0.0.1): Yes
- Xfinity xFi Eligible: Yes
- Xfinity xFi Advanced Security: Yes
- Xfinity app Activation: Yes
- Two Total Telephone Ports: Yes
- Battery Backup Capability (Xfinity Voice Only): Yes
- Backup battery no longer offered for this device
- Previously purchased backup batteries may still be used
- The xFi Advanced Gateway (XB7 and higher) is the only device currently offering a backup battery for purchase (non-EPON)
- Backup battery no longer offered for this device
- Link Cordless Phones (CAT-iq 2.0*): Yes
- Home Hotspot Capable: Yes
- Compatible with Xfinity Home Pro Protection: Yes
- Compatible with Xfinity Home Self Protection: Yes
View and Download Xfinity xFi Advanced Gateway (XB6) Resources:
XFI WIRELESS GATEWAY
Our xFi Wireless Gateway offers the speed, coverage, WiFi management tools, Parental Controls and xFi Pods (excluding DPC3939) for extended coverage.
- Model Numbers: DPC3939, DPC3941T, TC8717 and TG1682G
- Friendly Model Name: XB3
- Gb Ethernet Ports: 4
- Dual-Band WiFi Option: Yes
- 2.4GHz Connected Client Limit: 30
- 5GHz Connected Client Limit: 30
- Maximum Data Throughput: 600 Mbps
- WPS (WiFi Protected Setup): Yes
- Gateway / Network Management Tool (http://10.0.0.1): Yes
- Xfinity xFi Eligible: Yes
- Xfinity xFi Advanced Security: Yes (excluding DPC3939)
- Xfinity app Activation: Yes
- Two Total Telephone Ports: Yes (separate Alarm Port)
- Battery Backup Capability (Xfinity Voice Only): Yes
- Backup battery no longer offered for this device
- Previously purchased batteries may still be used
- The xFi Advanced Gateway (XB7 and higher) is the only device currently offering a backup battery for purchase (non-EPON)
- Backup battery no longer offered for this device
- Link Cordless Phones (CAT-iq 2.0*): Yes (excluding TC8717)
- Home Hotspot Capable: Yes
- Compatible with Xfinity Home Pro Protection: Yes
- Compatible with Xfinity Home Self Protection: Yes
Download a User Guide:
- DPC3941T User Guide
- TG1682G User Guide
- TG1682G Quick Start Guide
- DPC3939 User Guide
- TC8717 User Guide
XFI FIBER GATEWAY
This WiFi gateway/MTA solution provides complete home connectivity and coverage at high speeds at our Fiber-to-the-Unit properties.
- Model Numbers: Arris X5001
- Friendly Model Name: XF3
- Gb Ethernet Ports: 4
- Band WiFi Option: Yes
- Maximum Data Throughput: 1 Gbps
- WPS (WiFi Protected Setup): Yes
- Gateway / Network Management Tool (http://10.0.0.1): Yes
- Xfinity xFi Eligible: Yes
- Xfinity xFi Advanced Security: Yes
- Xfinity app Activation: No
- Two Total Telephone Ports: Yes
- Battery Backup Capability (Xfinity Voice Only): Yes
- A backup battery is available to purchase for use with the XF3 in EPON (fiber-to-the-unit) properties
- This battery must be installed by a technician
- A backup battery is available to purchase for use with the XF3 in EPON (fiber-to-the-unit) properties
- Link Cordless Phones (CAT-iq 2.0*): No
- Home Hotspot Capable: Yes
- Compatible with Xfinity Home Pro Protection: Yes
- Compatible with Xfinity Home Self Protection: No
View and Download xFi Fiber Gateway Resources:
XFINITY GATEWAY (1/2/3)
These are old Wireless Gateways with limited speeds and functionality.
- Model Numbers: TC8706C, TG852G, TG862G and TC8305C
- Friendly Model Name: XB2
- Gb Ethernet Ports: 4
- Dual-Band WiFi Option: Yes
- Maximum Data Throughput: 150 Mbps
- WPS (WiFi Protected Setup): Yes
- Gateway / Network Management Tool (http://10.0.0.1): Yes
- Xfinity xFi Eligible: No
- Xfinity xFi Advanced Security: No
- Xfinity app Activation: No
- Two Total Telephone Ports: Yes (separate Alarm Port)
- Battery Backup Capability (Xfinity Voice Only): Yes
- Backup battery no longer offered for this device
- Previously purchased batteries may still be used
- The xFi Advanced Gateway (XB7 and higher) is the only device currently offering a backup battery for purchase (non-EPON)
- Backup battery no longer offered for this device
- Link Cordless Phones (CAT-iq 2.0*): Yes
- Home Hotspot Capable: Yes
- Compatible with Xfinity Home Pro Protection: Yes
- Compatible with Xfinity Home Self Protection: No
Download a User Guide:
Xfinity Gateway Feature Comparison
The following table compares all gateways.
| Product Features | Wireless Gateway 1 | xFi Fiber Gateway | xFi Wireless Gateway | xFi Advanced Gateway (XB6) | xFi Advanced Gateway (XB7) | xFi Advanced Gateway (XB8) |
| (Model Numbers: TG852G, TG862G, TC8305C) | (Model Number: Arris X5001) | (Model Numbers: DPC3941T, DPC3939, TC8717, TG1682G) | (Model Number: TG3482G, CGM4140COM) | (Model Numbers: CGM4331COM, TG4482A) | (Model Number: CGM4981COM) | |
| Four Total Gb Ethernet Ports | Yes | Yes | Yes | No (2) | Yes | Yes |
| Dual Band WiFi | No | Yes | Yes | Yes | Yes | Tri-Band WiFi |
| Maximum Data Throughput | 150 Mbps | 1 Gbps | 600 Mbps (275 Mbps for DPC3939) |
1 Gbps | 2.5 Gbps | 2.5 Gbps |
| WPS (WiFi Protected Setup) | Yes | Yes | Yes | Yes | Yes | Yes |
| Gateway and Network Management Tool (http://10.0.0.1) |
Yes | Yes | Yes | Yes | Yes | Yes |
| Xfinity xFi Eligible | No | Yes | Yes | Yes | Yes | Yes |
| Xfinity xFi Advanced Security | No | Yes | Yes (excluding DPC3939) | Yes | Yes | Yes |
| Xfinity app Activation | No | No | Yes | Yes | Yes | Pro-Install until April 2022 |
| RDK-B | No | Yes | Yes | Yes | Yes | Yes |
| Two Total Telephone Ports | Yes | Yes | Yes (separate Alarm Port) |
Yes | Yes (separate Alarm Port) | Yes (separate Alarm Port) |
| Battery Backup Availability (Xfinity Voice Only) | No | Yes | No | No | Yes | Yes |
| Eligible for an X1 Wireless TV Box / Flex Streaming TV Box | No | Yes | Yes (excluding DPC3939) | Yes | Yes | Yes |
| Link Cordless Phones (CAT-iq 2.0*) | No | No | Yes | Yes | Yes | Yes |
| Home Hotspot Capable | Yes | Yes | Yes | Yes | Yes | Yes |
| Compatible with Pro Protection | Yes | Yes | Yes | Yes | Yes | Yes |
| Compatible with Self Protection | No | No | No | Yes | Yes | Yes |
*CAT-iq 2.0: Cordless Advanced Technology (CAT). CAT-iq 2.0 is a digital communication standard, used primarily for cordless phone systems. CAT-iq 2.0 handsets can be paired with the Wireless Gateway.
Using Third-Party Equipment
Alternatively, some Xfinity customers may wish to purchase and use third-party cable modems and gateways. However, you will miss out on the full suite of Xfinity services.
Notes:
- Before purchasing your own equipment, confirm it's recommended for use with Xfinity services and can achieve the maximum capability of your subscribed speed tier.
- Visit My Device Info.
- Advanced Security must be activated through the Xfinity app.
Additional Resources
https://www.xfinity.com/support/articles/broadband-gateways-userguides
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
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