Thermaltake is preparing to release a new AIO (All In One) water cooling part that cools both CPU and RAM. All with plenty of RGB. Unlike a typical AIO cooler, with a radiator and a CPU block, this new loop goes from the radiator to the CPU to a RAM water-block, and back.
According to PCGamer,
According to the company's press release, the products will launch in Q3 2020 in 360mm and 240mm radiator variants, and include a 2 year warranty. On the plus side, having a single device for the RGB on one's CPU, two fans, and RAM could simplify RGB management, as the press release states the RGB can be
Not sure who's demanding watercooled RAM, but time (and and benchmarks) will tell if the benefits are tangible.