This DDR4 (260-pin) memory is designed for DDR4 laptop sockets and will not work on DDR3 (204-pin) sockets. This memory is designed for motherboard sockets, which support 32GB per socket capacity.F or sale is a new and sealed OWC 32GB DDR4 laptop memory module. The box has light marks. The item "OWC 32GB DDR4 PC4-21300 2666MHz SODIMM (OWC2666DDR4S32G) Laptop RAM Memory" is in sale since Sunday, January 3, 2016. This item is in the category "Computers/Tablets & Networking\Computer Components & Parts\Memory (RAM)". The seller is "ideals_uk" and is located in London. This item can be shipped worldwide.