Motorola Surfboard eXtreme DOCSIS 3.0 Cable Modem *New, Open Box* SB6121 For Sale
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Upgrade your home network with speed and reliability using this brand new, open-box Motorola Surfboard eXtreme DOCSIS 3.0 Cable Modem (Model SB6121)!
History & Retro Fun Facts:
The Broadband Revolution: The Motorola Surfboard series became an absolute gold standard for home internet connectivity during the massive transition to high-speed cable broadband in the 2010s, freeing millions of households from monthly modem rental fees.
DOCSIS Technology: Developed by CableLabs, DOCSIS (Data Over Cable Service Interface Specification) technology revolutionized how high-bandwidth data travels over coaxial television lines, paving the way for modern gigabit-era home internet.
Device Details & Specifications:
Model: Motorola SB6121 SURFboard
Standard: DOCSIS 3.0 (Backward compatible with DOCSIS 2.0/1.1)
Interface: 1 Gigabit Ethernet Port (1000 Mbps)
Data Rates: Supports high-speed downstream and upstream speeds suited for standard cable internet service plans.