Intel has announced that its Optane memory will require an Intel Kaby Lake processor to function. While previous demonstrations of the technology used an Intel Skylake processor, it appears this configuration will not be possible on the consumer versions of the technology.
Further, the consumer application accelerator drives will also require a 200-series chipset motherboard, and either a M.2 2280-S1-B-M or M.2 2242-S1-B-M connector with two or four PCI-E lanes. Motherboards will also need to support NVMe v1.1 and Intel RST (Rapid Storage Technology) 15.5 or newer.
It is not clear why Intel is locking Optane technology to Kaby Lake, but they did.