The Arris Touchstone CM820B DOCSIS 3.0 8×4 is a high-performance cable modem designed to deliver ultra-high-speed internet access for both homes and businesses. This device is particularly suitable for advanced users who require fast, reliable data services. The CM820B supports DOCSIS 3.0 technology, featuring 8 downstream and 4 upstream channels (8×4 bonded channels), allowing for data speeds greater than 300 Mbps in standard mode. In EuroDOCSIS mode, the downstream speeds can exceed 400 Mbps, providing competitive speeds compared to VDSL and fiber-to-the-home services. This modem is ideal for cable operators who wish to offer superior data services, enabling home and small business users to meet productivity demands with enhanced speed and performance. The CM820B is designed to cater to the growing demand for high-capacity commercial services, allowing businesses to access reliable, high-speed internet. Its performance is particularly beneficial in environments where high bandwidth is required for operations such as video streaming, large file transfers, and other data-intensive applications. With ARRIS's industry-leading reliability, the CM820B provides a robust and dependable solution for broadband internet access. This device competes effectively against other high-speed options like VDSL and fiber, making it a top choice for both residential and business use. Whether it's used for residential home networks or for providing commercial internet services, the CM820B ensures high-speed connectivity, making it an excellent choice for those looking for a fiber optic router or a powerful modem router solution. Keywords: router, 5G router, router machine, 5G wifi router, wifi 6 router, fiber router, 4G router, best home router, best wifi router, fiber optic router, hub switch router, wifi router extender, mini wifi router, modem router.