DOCSIS 3.0 8x4 Cable Modem

Model 5345


343 Mbps DOCSIS 3.0 8x4 Cable Modem

Provides high-speed Internet.  Connects to your computer or router.

  • Fast Internet!
    Faster than DOCSIS 2.0 and 4x4 DOCSIS 3.0

  • Full-Band Capture Digital Tuning
    For even higher speeds

  • 2-year Warranty

  • CableLabs® certified
    Also certified for use with Comcast XFINITY®, Time Warner Cable®,
    Cox®, Bright House®, and more

    XFINITY Time Warner Cable


Front and back views

Product images not shown actual size.
Actual size of case is 5.7 x 4.1 x 1.6 inches (14.4 x 10.5 x 4 cm).

Save money!

Owning this cable modem eliminates modem rental charges (typically $8 to $10 every month) from Comcast XFINITY, Time Warner Cable, Cox, Bright House, and other service providers.

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Fast Internet!

This 8x4 cable modem has eight downstream channels, four more than 4x4 cable modems. 8x4 gives higher average download speeds than 4x4, even for service speeds below this cable modem/router’s top speed of 343 Mbps.

Full-Band Capture Digital Tuning lets your cable service provider deliver faster, more reliable Internet.


Plugs into your computer or router

Provides Internet access for a computer or anything connected to your router.

Windows, Mac, or other 
computer with an Ethernet port or router connects to computers, smartphones, and other devices.

Certified by Comcast, Time Warner Cable,
Cox, Bright House, and more

This product is certified for own-your-modem programs by Comcast, Time Warner Cable, Cox, Bright House, and more. For other cable services, please check with that service.

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Additional features

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    CableLabs certified
    The 5345 is certified by CableLabs to support the latest DOCSIS 3.0 standard plus DOCSIS 2.0 and 1.1 for use with older cable systems. Also certified by Comcast, Time Warner Cable, Cox, Bright House, and more.

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    Gigabit Ethernet port
    10/100/1000 Mbps for highest speed and compatibility

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    Supports IPv6 and IPv4
    For powerful, flexible network addressing.

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    Uses advanced Broadcom integrated circuit technology

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    The perfect choice
    With its easy installation, high speed, and extensively tested compatibility, the Model 5345 is the perfect choice for almost any cable modem user.

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    Excellent USA customer support
    The Zoom 5345 is supported by Zoom Telephonics, a Boston based company founded in 1977.

See specifications »

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