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Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem (2.5 Gbps)
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Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem (2.5 Gbps)

Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem (2.5 Gbps)

$104.65

Original: $299.00

-65%
Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem (2.5 Gbps)

$299.00

$104.65

The Story

Unlock gigabit-plus internet with the Motorola MB8611. This DOCSIS 3.1 modem is approved for use with major cable ISPs and features a 2.5 GbE port, low-latency AQM, and seamless pairing with any Wi-Fi router.

Key Features

  • DOCSIS 3.1 (backward compatible with 32x8 DOCSIS 3.0)
  • 2.5 Gbps Ethernet for multi-gig routers, PCs, and NAS
  • Lower latency with Active Queue Management (AQM) for smoother gaming, streaming, and video calls
  • Own your modem and avoid monthly rental fees
  • Works with any Wi-Fi router (no Wi-Fi or telephony built in)

Compatibility

Approved for most plans with major cable providers:

  • Comcast Xfinity
  • Spectrum (Charter)
  • Cox
  • RCN (Astound) in many regions

Important: Plan speeds and approval can vary by region. Check with your ISP to confirm support for your specific service tier.

Specs

Brand Motorola
Model MB8611
DOCSIS 3.1 (OFDM/OFDM-A), 32x8 DOCSIS 3.0 backward compatible
Ethernet Ports 1 × 2.5 GbE
Color Black
Dimensions Approx. 7.25" × 7.88"
Connectivity Coax (WAN) + Ethernet (LAN). Pairs with any Wi-Fi router (router not included).
Latency Features Active Queue Management (AQM)

Performance

  • Downstream: Gigabit-plus (varies by ISP and plan)
  • Upstream: Up to ~800 Mbps when supported by your plan

What’s Included

  • Motorola MB8611 Cable Modem
  • Ethernet Cable
  • Power Supply
  • Online Installation Guide

Why Buy

  • Save money: Owning typically saves up to ~$168/yr vs. renting (varies by ISP)
  • Future-ready: Multi-gig LAN with 2.5 GbE
  • Smoother experience: AQM reduces lag and buffering

Setup (3 Steps)

  1. Connect coaxpowerEthernet (to your router or computer).
  2. Activate with your ISP (app, web portal, or phone support).
  3. If using a router, set WAN to auto/DHCP and connect to the modem’s 2.5 GbE port.

FAQ

Does the MB8611 have Wi-Fi?
No. It’s a standalone cable modem. Pair it with any Wi-Fi router or mesh system.

Does it support voice/telephone service?
No. If you need voice, choose a modem with telephony (eMTA) support.

Is it compatible with my speed tier?
Yes for most Xfinity/Spectrum/Cox plans up to gigabit-plus. Verify your exact plan with your ISP.

How much can I save?
ISP rental fees vary, but many users save around $10–$15/month by owning their modem.

 

Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem (2.5 Gbps) - Image 2

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem (2.5 Gbps) - Image 3

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Description

Unlock gigabit-plus internet with the Motorola MB8611. This DOCSIS 3.1 modem is approved for use with major cable ISPs and features a 2.5 GbE port, low-latency AQM, and seamless pairing with any Wi-Fi router.

Key Features

  • DOCSIS 3.1 (backward compatible with 32x8 DOCSIS 3.0)
  • 2.5 Gbps Ethernet for multi-gig routers, PCs, and NAS
  • Lower latency with Active Queue Management (AQM) for smoother gaming, streaming, and video calls
  • Own your modem and avoid monthly rental fees
  • Works with any Wi-Fi router (no Wi-Fi or telephony built in)

Compatibility

Approved for most plans with major cable providers:

  • Comcast Xfinity
  • Spectrum (Charter)
  • Cox
  • RCN (Astound) in many regions

Important: Plan speeds and approval can vary by region. Check with your ISP to confirm support for your specific service tier.

Specs

Brand Motorola
Model MB8611
DOCSIS 3.1 (OFDM/OFDM-A), 32x8 DOCSIS 3.0 backward compatible
Ethernet Ports 1 × 2.5 GbE
Color Black
Dimensions Approx. 7.25" × 7.88"
Connectivity Coax (WAN) + Ethernet (LAN). Pairs with any Wi-Fi router (router not included).
Latency Features Active Queue Management (AQM)

Performance

  • Downstream: Gigabit-plus (varies by ISP and plan)
  • Upstream: Up to ~800 Mbps when supported by your plan

What’s Included

  • Motorola MB8611 Cable Modem
  • Ethernet Cable
  • Power Supply
  • Online Installation Guide

Why Buy

  • Save money: Owning typically saves up to ~$168/yr vs. renting (varies by ISP)
  • Future-ready: Multi-gig LAN with 2.5 GbE
  • Smoother experience: AQM reduces lag and buffering

Setup (3 Steps)

  1. Connect coaxpowerEthernet (to your router or computer).
  2. Activate with your ISP (app, web portal, or phone support).
  3. If using a router, set WAN to auto/DHCP and connect to the modem’s 2.5 GbE port.

FAQ

Does the MB8611 have Wi-Fi?
No. It’s a standalone cable modem. Pair it with any Wi-Fi router or mesh system.

Does it support voice/telephone service?
No. If you need voice, choose a modem with telephony (eMTA) support.

Is it compatible with my speed tier?
Yes for most Xfinity/Spectrum/Cox plans up to gigabit-plus. Verify your exact plan with your ISP.

How much can I save?
ISP rental fees vary, but many users save around $10–$15/month by owning their modem.

 

Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem (2.5 Gbps) | Modem Guides