Why does it always have to be expensive, it's also so! The main memory "Komputerbay 16GB (2x 8GB) DDR3 PC3-10600 1333MHz SODIMM 204-pin 10666" also works against the statements made by Dell (only 8GB) Perfect. Installation in my Vostro 3750 was 2 min. Settled, performance index gestartet- finished new! Now also takes CS5 no longer so long until it is Sartklar and processing is also faster.