It is indeed a set of 4000 MHz speed and is shipped as a dual-channel kit with 16GB of density. There is a limited lifetime warranty covering these modules, and essential to many without RAM ...
Unlike a lot of RGB DDR5 RAM, the Fury Beast is also available in dual-channel 16GB (2 x 8GB) kits, which is ideal if you know you don’t need more than 16GB, and want some good-looking memory ...