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Motorola SURFboard SB6121 Specs - CNET 2020-7-24 · Motorola SURFboard SB6121 overview and full product specs on CNET. ARRIS Consumer Care - SB6121 2020-7-24 · The SB6121 delivers your complete personal media experience, at incredible broadband speeds. It harnesses the power of DOCSIS 3.0 technology to bond up to four downstream channels and four upstream channels— providing you advanced multimedia services with download speeds up to 172 Mbps in each direction. SB6121 DOCSIS 3.0 Cable Modem

Building upon the success of the SB6120, Motorola's SURFboard SB6121 delivers your complete personal media experience, at lightning-fast broadband speed. It harnesses the power of DOCSIS 3.0 technology to bond up to four downstream channels and four upstream channels--providing you advanced multimedia services with data rates of more than 100

Jul 30, 2017 · As part of Motorola DOCSIS 3.0 Ultra-Broadband family of products, the SB6121 includes an enhanced tuner that supports up to a 1 GHz downstream input, which allows operators to increase the frequency spectrum for deployment of new high-value services, such as bandwidth on-demand, commercial services, interactive gaming, and IPTV, to their

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I have internet service via Comcast. I had the same modem for 5 years (Motorola SB5101). I was getting downloads of 19 Mbps and uploads of 3.1 Mbps. After installing the new modem (SB6121), I am getting downloads of 30 Mbps (a 50% improvement) and uploads of 3.7 (not as much, but still an improvement). I highly recommed this product. P.S. The Motorola ® SURFboard ® SB6121 DOCSIS ® 3.0 Cable Modem provides high-speed Internet access to the Internet and other online services. You can use your high-speed cable modem to directly connect one computer in your home or business to the Internet. This guide provides product overview and setup information for the SB6121. Channel bonding allows parallel data pipes to act as a single broadband conduit. With each channel capable of providing around 40 Mbps of data, the Motorola SURFboard SB6121's four downstream channels can provide a theoretical maximum of 160 Mbps of throughput.