PC makers do all kinds of things to save space inside their cases, but this is a new one to us: Apacer is apparently sampling sticks of DDR3 desktop RAM that include slots for M.2 SSD add-in boards and CFast CompactFlash cards, allowing you to mount storage devices directly to your RAM rather than using slots on the motherboard. The slots will still use the SATA III interface to transfer data—they're just mounted to the RAM and they draw power through the RAM slot.
Mount your hard drive? on your RAM? | Ars Technica
CDRLabs.com - Apacer Announces M.2 NGFF And CFast Combo SDIMM Memory Modules | News