How Intel Plans to Transition Between DDR3 and DDR4 for the Mainstream ...
In order to use DDR3 RAM in a DDR4 slot, the stick must be backward-compatible with DDR3. In any case, your motherboard will not recognize the format if the stick fits into the slot.
16GB (x64, DR) 260-Pin DDR4 SODIMM
Pinout of the slot (connector, socket) of DDR4 DIMM RAM on motherboards.
SIM-110 | XUNPU | Price | In Stock | LCSC Electronics
SIM-110 by XUNPU - In-stock components at LCSC. Price from $0.2409. Free access SIM-110 datasheet, Package, pinout diagrams, and BOM tools.