Top 9 Used Cable Modem – Computer Networking Modems

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Cox, Spectrum and most Docsis Cable Internet Providers| Plans up to 400 Mbps, ARRIS SURFboard SB6183-RB DOCSIS 3.0 16x4 Cable Modem| Approved on Xfinity

ARRIS #ad - Cable modem only no wifi router. Great for streaming HD Video and gaming on multiple devices at a time. If not sure call your cable provider to find out if approved to use. Internet speeds up to 686 mbps on 16 download channels and 131 mbps on 4 Upload Channels, based on your cable ISP subscription.

Approved with comcast xfinity, at&t, time warner, brighthouse, spectrum charter, cox and more. Gigabit ethernet port to connect to computer or router. Arris certified refurbished. 90 day warranty. No support for Cable TELCO options. Approved for plans up to 400Mbps. Us technical support. Not compatible with: Verizon, or CenturyLink. Requires cable Internet Service. Arris certified refurbished products will always be branded ARRIS, Never Motorola! If you get Motorola branded product they are illegitimate, need to be returned to Seller and Reported to Amazon.
BrandARRIS #ad
ManufacturerCommScope #ad
Height5.25 Inches
Length2.13 Inches
Weight1 Pounds
Width5 Inches
Part NumberSB6183-RB
Warranty90 Day Limited Warranty



Cox, Spectrum, NETGEAR Cable Modem DOCSIS 3.0 CM700-1AZNAS Compatible with All Major Cable Providers Including Xfinity, For Cable Plans Up to 800 Mbps

NETGEAR #ad - Compatible with all major cable internet providers: including certification by Xfinity by Comcast, DirecTV, CenturyLink, COX, AT&T, DSL providers, and Spectrum.

Ethernet connections: 1 Gigabit Ethernet port connects to your computer or separate Wi-Fi router. Not compatible with Verizon, DISH and any bundled voice service. Save monthly rental fees: model cm700-1aZNAS replaces your cable modem saving you up to 168 Dollars/year in equipment rental fees. Speeds by carrier: xfinity up to 800Mbps, Cox up to 500Mbps, Spectrum up to 400Mbps. Modem technology: engineered with 32x8 channel bonding, OFDM 2x2, and DOCSIS 3. 1. Works with any wi-fi router: connect any Wi-Fi router to this modem's Ethernet port to support all your wireless devices.
BrandNETGEAR #ad
ManufacturerNetgear Inc #ad
Height5.2 Inches
Length1.7 Inches
Weight0.55 Pounds
Width6.6 Inches
Part NumberCM700-1AZNAS
WarrantyLimited (1) Year Warranty

3. Motorola


Cox Gigablast, Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast Xfinity, Spectrum | 2.5 Gbps Port | 2500 Mbps Max Internet Speeds

Motorola #ad - This cable modem does NOT have a built-in wireless router or telephone call capability. Fast streaming, conferencing, conferencing, including online gaming, gaming - Applies Active Queue Management AQM for reduced Internet latency and better app performance, and streaming.

Savings described is for Comcast Xfinity and vary by service provider. Backward compatible with 32x8 DOCSIS 3. 0 Comes with a 2-year warranty and free support from our team of USA technicians. Extreme cost savings - owning your own modem typically saves the home $168 per year in monthly rental charges. Supports fast internet plans with Comcast Xfinity, Cox, and Spectrum. Built for reliability - motorola is a worldwide leader in technology people depend on.

Pairs with any wifi router - seamlessly compatible with any WiFi router to connect all your devices. Ultra-fast docsis 3. 1 performance - delivers true gigabit-plus speeds. Multi-gigabit ethernet speed - a 2. 5 gb ethernet port delivers true high-speed connectivity to even the fastest routers and computers, providing downstream speeds just below 2, 500 Mbps and upstream speeds up to 800 Mbps when supported by your internet service plan.
BrandMotorola #ad
ManufacturerMTRLC LLC #ad
Height7.88 Inches
Length0 Inches
Weight0.07 Pounds
Width7.25 Inches
Part NumberMB861110
WarrantyManufacturer warranty for 2 years from date of purchase



ARRIS Surfboard SB6190-RB DOCSIS 3.0 Cable Modem, White Renewed

ARRIS #ad - Us technical support. Arris certified Refurbished. Supports ipv4 and ipv6 – the latest Internet standard. Cable providers like Xfinity, Suddenlink, Spectrum, etc. Requires cable internet service. Recommended for plans up to 800 Mbps. 90 day warranty. Not compatible with aTT, Mediacom, Cox, Verizon or CenturyLink. Compatible with major U. S. 32 download & 8 upload channels to future proof your modem as your Cable ISP enhances service offerings.
BrandARRIS #ad
ManufacturerCommscope #ad
Height5.25 Inches
Length1.75 Inches
Weight1.13 Pounds
Width5.13 Inches
Part NumberSB6190-RB
Warranty90 Day Limited Warranty



Cox, ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem | Approved for Comcast Xfinity, & more | Two 1 Gbps Ports | 1 Gbps Max Internet Speeds | 4 OFDM Channels | 2 Year Warranty, Charter Spectrum

ARRIS #ad - Note, a 2nd ip address is required from your cable internet provider to reach 2 Gbps. 32 downstream x 8 upstream docsis 3 0 bonded channels, 2 downstream x 2 upstream OFDM DOCSIS 3 1 channels. Cable internet service required; Does not inlcude Wi-Fi and does not support cable digital voice service. Docsis 3 1 cable modem best for cable internet speed plans up to 2 Gbps. Two 1-gigabit Ethernet ports. Not compatible with att, verizon, CenturyLink or other DSL or Fiber internet providers.
BrandARRIS #ad
ManufacturerCommScope #ad
Height5 Inches
Length5 Inches
Width2 Inches
Part NumberSB8200
Warranty2 year Limited Warranty

6. Motorola


BrightHouse, MOTOROLA 16x4 Cable Modem, Charter Spectrum, and More, 686 Mbps DOCSIS 3.0, Model MB7420, Cox, Certified by Comcast XFINITY, Time Warner Cable

Motorola #ad - Experienced usa-based customer support specialists are there to help if you need them. The motorola mg7310, game station, mg7315, mG7540 and MG7550 have a built-in wireless router. This model mb7420 cable modem does NOT have a built-in wireless router and does not have a telephone adapter or phone jack.

Requires cable internet service. Cable modem's ethernet port connects to a computer, hdtv, or wireless router. A full-band capture digital tuner ensures a faster, more reliable Internet. Setup is fast and easy with a few quick steps set out in a Quick Start guide. This 16x4 docsis 3.

0 cable modem provides speeds up to 686 mbps, sixteen times faster than DOCSIS 2. 0 Certified by comcast xfinity for residential speeds up to extreme 300, cox, Charter Spectrum, Time Warner Cable, by Comcast Business for speeds up to Deluxe 250, BrightHouse, and other leading cable service providers for modem ownership programs that typically save rental charges of 120 dollar or more per year.
BrandMotorola #ad
ManufacturerMTRLC LLC #ad
Height6.1 Inches
Length4.9 Inches
Weight0.58 Pounds
Width2 Inches
Part NumberMB7420-10
Warranty2 year manufacturer



ARRIS SURFboard SBG8300 DOCSIS 3.1 Gigabit Cable Modem & AC2350 Wi-Fi Router | Comcast Xfinity, Spectrum & more | Four 1 Gbps Ports | 1 Gbps Max Internet Speeds | 4 OFDM Channels 2 Year Warranty, Cox

ARRIS #ad - Setup and manage your network with the SURFboard Manager app Add SURFboard skills to your Alexa network for voice management of your Wi-Fi settings. 3 products in 1: docsis 3 1 cable modem, ac2350 dual band Wi-Fi, 4 port Gigabit Router cable digital voice service not supported.

Wave 2 ac2350 dual-band concurrent Wi-Fi Router with 4 Gigabit Ethernet ports. Cable internet service required. Not compatible with att, comcast xfinity, Mediacom, Cox, Verizon, TWC, CenturyLink or other DSL or Fiber internet providers. Compatible with major u s cable internet providers including cableone/ sparkligh, RCN, Service Electric, Wave Broadband, grande communicatio, BHN, Spectrum Charter, WOW.3

32 downstream x 8 upstream docsis channels, 2 downstream x 2 upstream DOCSIS 3 1 OFDM channels Best for cable internet speed plans up to 4 Gbps. Maximum range : 1800 Sq Ft. Connector type : coaxial cable, ethernet, WiFi.
BrandARRIS #ad
ManufacturerCommScope #ad
Height9.33 Inches
Length2.87 Inches
Width8 Inches
Part NumberSBG8300
Warranty2 years



CM1000-1AZNAS Renewed, Netgear Gigabit Cable Modem 32x8 DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity

NETGEAR #ad - 0 networks. System requirements- cable broadband internet service, vista, 10, or other operating systems running a tcp/ip network, microsoft internet explorer 5.0, 8, mac os, microsoft Windows 7, Safari 1.

4, xp, 2000, firefox 2.0, please check your cable internet service provider web site for data speed tier compatibility and to ensure it provides DOCSIS 3. 1 service, otherwise this modem will only work as a DOCSIS 3. 0 modem, or Google Chrome 11. 0 browsers or higher. Eliminate monthly cable modem rental fees - up to $156 per year. Meets docsIS 3. 01 up to 10x faster download speeds than docsis 3. 1 specifications and is backward compatible with DOCSIS 3. 1 is ofdm 2x2+ docsiS 3. Cm1000-1aznas is not compatible with: verizon, AT&T, or CenturyLink. Support all cable internet speed tiers, up to Gigabit 1000 Mbps service. Docsis 3. Separate router required for Wi-Fi.
BrandNETGEAR #ad
ManufacturerNetgear #ad
Height4.53 Inches
Length10.24 Inches
Width7.24 Inches
Part NumberMorza/va179
Warranty90 days limited warranty



Compatible with all Cable Providers including Xfinity by Comcast, Cox | For Cable Plans Up to 2 Gigabits | 4 x 1G Ethernet ports | DOCSIS 3.1, Black, Spectrum, NETGEAR Nighthawk Cable Modem CM1200

NETGEAR #ad - Four 4 gigabit ethernet ports give you fast wired connections to your computer, printer, game box, separate WiFi router, and other devices. Save monthly rental fees: model cM1200 replaces your cable modem saving you up to 168 dollars/yr in equipment rental fees.

Compatible with all major cable internet providers with internet speed up to 2gbps. Future speeds with these service providers may change over time. Not compatible with verizon, centurylink, DSL providers, AT&T, DirecTV, DISH and any bundled voice service. Works with any wifi router: connect any WiFi router to this modem’s Ethernet port to support all your wireless devices.

Multi-gig ethernet: link aggregation combines two 1G ports into one 2G port for faster wired ethernet speed. Currently certified with Spectrum and Cox up to 1Gbps and Xfinity up to 800Mbps. Modem technology: engineered with 32x8 channel bonding, OFDM 2x2, and DOCSIS 3. 1.
BrandNETGEAR #ad
ManufacturerNetgear Inc #ad
Height10.3 inches
Length6.1 inches
Weight1.22 Pounds
Width3.4 inches
Part NumberCM1200-100NAS
Warranty1-year warranty