The SB6141 is good up to 100 Mbps and will support IPv6 after it receives an online firmware update from Spectrum (might already have received it). It is located under ARRIS in Spectrum's listing of Devices Approved for Customer Purchase, which is available for viewing on this very forum.

NETGEAR R6700 Nighthawk AC1750 Smart WiFi Router. The Nighthawk AC1750 smart wireless … How much is 100MB of data and how much do I really need Oct 09, 2019 100Mbps internet's dirty little secret | ZDNet Sep 16, 2010

Mbps stands for megabits per second, which is a measurement of speed used for both download and upload speeds. If your internet service plan advertises 100 Mbps, you can handle most things the internet throws at you while avoiding lag or buffering issues. In the US, 100 Mbps is the average total speed for internet users, but a lot of cable and satellite speeds are still lower than that.

Mar 07, 2019 AT&T Internet Plans From 100 Mbps | The fastest AT&T internet speeds are 100 Mbps for DSL and 940 Mbps for fiber. If you’re looking for fast upload speeds, too, AT&T Fiber is the way to go since fiber gets you upload speeds that match your download speeds. AT&T Internet Speeds

Best Router for 100Mbps Internet (Top Wireless Router for

Mar 28, 2002 How Much Internet Speed Do I Need? | Guides