This Certified Refurbished product is manufacturer refurbished?? shows limited or no wear?? and includes all original accessories plus a 90-day warranty</br>Requires CABLE Internet Service?? if not sure your provider is CABLE call them to confirm</br>Compatible with ALL Major CABLE providers like"cast/Xfinity?? Cox?? Charter?? Time Warner?? Mediacom?? Bright House</br>Internet download speeds up to 343 Mbps and upload speeds up to 131 Mbps based on your Cable provider service</br>Ideal for streaming HD Video and gaming on multiple devices at a time</br></br>Product Description</br></br>Building upon the success of the SB6121?? Motorola's SURFboard SB6141 enhances your personal media experience?? at lightning-fast broadband speed. It harnesses the power of DOCSIS 3.0 technology to bond up to eight downstream channels and four upstream channels--providing you advanced multimedia services with data rates up to 343 Mbps download and 131 Mbps upload depending on your Cable Internet provider service. That makes streaming HD Video?? gaming?? shopping?? downloading?? working?? high-quality voice and video conferencing?? and peer-to-peer networking applications far more realistic?? faster?? and efficient than ever before.</br></br>Amazon.com</br></br><img alt="rb" height="173" src="https://images-na.ssl-images-amazon.com/images/G/01/woot2/refurbished-guide_horizantal._V325653458_.jpg" style="vertical-align: top;" width="972" /><br /><br /> <div class="aplus"> <div class="two-third-col"> <div class="leftImage" style="width: 300px;"> <img alt="SB6141 Motorola Surfboard" height="300" src="https://images-na.ssl-images-amazon.com/images/G/01/aplus/detail-page/B00AJHDZSI.MAIN_SM.jpg" width="193" />  <div class="imageCaption">view larger</div> </div> <p>Surfboard SB6141 Cable Modem</p> <p>Strengthen your broadband  count on Motorolas SURFboard DOCSIS to help you deliver innovative ultra-broadband data services.</p> <p>High Value and Increased Data Speed</p> <p>Motorolas easy-to-use <strong>SB6141 SURFboard DOCSIS 3.0 Cable Modem</strong> offers high-bandwidth data and multimedia services. Utilizing the power   of DOCSIS 3.0 the SB6141 enables channel bonding of up to eight   downstream channels and four upstream channels which gives you advanced   multimedia services with data rates of over 300 Mbps for received data   and over 100 Mbps when sending data. The SB6141s higher-speed  services  enable you to:</p> <ul> <li>Protect an installed base of high-speed data users</li> <li>Deliver high-bandwidth multimedia services</li> <li>Deliver competitive high-capacity commercial services to your business customers</li> </ul> <p>Economic and Flexible</p> <p>The Motorola SB6141 SURFboard DOCSIS 3.0 Cable Modem provides you   with an economic option for ultra-broadband services with eight times   the current maximum user data throughput approximating over 300 Mbps in   DOCSIS and 400 Mbps in EuroDOCSIS mode*. You don't even need the hybrid   fiber coax (HFC) plant upgrade. Maximizing your current Internet  setup  the SB6141 can be deployed without service interruption.   Backwards-compatible to DOCSIS 1.0 1.1 and 2.0 the SB6141 also   supports both IPv4 and IPv6 Advanced Encryption Services and all other   DOCSIS 3.0 standards. As part of Motorola DOCSIS 3.0 Ultra-Broadband   family of products the SB6141 tuner has flexibility of two individual   capture bandwidth groups each 96 MHZ. These downstream capture windows   can be placed independently anywhere within the 108 MHz to 1 GHz   spectrum for deployment of new high-value services such as bandwidth   on-demand commercial services interactive gaming and IPTV to their   customers. The SB6141 features a 10/100/1000Base-T Ethernet (RJ-45)   port as well as intuitive easy-to-read front-panel operational status   LEDs. You can optionally activate dual-colored LEDs in order to have   visual verification of bonded channels and GigE link use. With   Motorolas cable modems high-speed Internet access is always at your   fingertips  always on and always connected. The SB6141 is the ideal   competitive solution for your house?? your small home business?? or your   medium to large business enterprise.</p> <p>Motorola??s Service-Assured DOCSIS</p> <p>3.0 Solutions enable increased bandwidth?? enhanced security?? and   cost-effective data services ? all while maximizing your current   infrastructure and lowering extra costs.</p> <p>Technical Specifications</p> <ul> <li>Cable Interface 75?? F-connector</li> <li>Dimensions: 5.24 in H x 5.24 in W x 1.65 in D</li> <li>Power: 9W (nominal)</li> <li><strong>Downstream</strong></li> <li>Modulation: 64 or 256 QAM</li> <li>Capture Bandwidth: Dual 96 MHz Capture windows</li> <li>Bandwidth: DOCSIS = 48 MHz; EuroDOCSIS = 64 MHz</li> <li>Security: DOCSIS 3"rity (BPI+?? EAE?? SSD)</li> <li><strong>Upstream</strong></li> <li>Modulation: QPSK and 8?? 16?? 32?? 64?? 128 QAM</li> <li>Channel Width: 200 kHz?? 400 kHz?? 800 kHz?? 1.6 MHz?? 3.2 MHz?? 6.4 MHz</li> <li>Maximum Channel Rate** <ol> <li>DOCSIS: 131.072 Mbps (4 channels) / 32.768 Mbps (single channel): @ 128 QAM at 6.4 MHz</li> <li>EuroDOCSIS: 131.072 Mbps (4 channels) / 32.768 Mbps (single channel): @ 128 QAM at 6.4 MHz</li> </ol></li> <li>Compatibility: PC: Windows Vista?? 2000?? XP or 7 or Linux with   Ethernet connection (older vers