These quad-channel SO-DIMM DDR4 memory G.Skill Ripjaws kits are all based on Samsung's B-die DDR4 ICs and will be available in 32GB (4x8GB) and 64GB (4x16GB) capacities, running at 3200MHz and 3600MHz with CL16-16-16-36 latencies and 3800MHz with CL18-18-18-38 latencies, all at 1.35V.

These kits target a rather niche market of high-end SFF systems and currently, only the recently unveiled ASRock X299E-ITX/ac motherboard will be able to squeeze the intended performance from these kits.

G.Skill has already validated the DDR4-3800 kit on that same ASRock X299E-ITX/ac motherboard and the Intel Core i9-7900X X-series CPU.

There's no details about price or  availability,  but thet should be on retail/e-tail shelves soon, if that ASRock motherboard caught your eye.