Samsung has published a product page on some new DDR4 at 2666 MHz. By itself, not something you'd consider a stellar announcement, the thing is though, they hold 32GB per DIMM and they're UDIMMS, intended for the desktop PC market.

Aimed at desktops the kits will become available in dual-channel options of two sticks. So on your average PC with two DIMMs would get you 64GB in dual-channel or even 128GB in quad channel on a HEDT platform if you wanted to do so. It's especially good news for Ryzen users with a work-desktop that requires massive amounts of RAM memory. Intel has a 128 GB limit in their HEDTs procs, but Threadripper, for example, can take pretty much as much as it can, so going for 256 GB would not be an issue either.

The DIMMs are tagged under SKU M378A4G43MB1-CTD DDR4 UDIMM from Samsung are DDR4-2666 (2666 MHz) with a voltage of 1.2 V. The Latency values are not listed at this time. The modules are not exactly sexy too look at with a green PCB, but at these specs that not exactly intended for gamers anyway, I guess.

Samsung Readies Consumer DDR4 that holds 32GB per DIMM