A:AnswerHi,
Yes you can use this memory. Your laptop based on the model number used 204 pin DDR3 sodimm and can be upgraded to 16gb of memory. You have two memory slots.
A:AnswerThe Dell Inspiron 15 (5559) Laptop takes the DDR3L PC3L-12800 1600MHz SODIMM memory type, and comes installed with 8GB memory.
Note the type of memory is DDR3L not the normal DDR3 memory. The 2 types of memory are not compatible because they have different voltage requirements. You need DDR3L. The most your PC can have is 16GB of memory.
A:AnswerHi Raja,
I'm afraid that I'm not finding much information on that model, is there a submodel for the laptop? If so, you could ask someone at the Geek Squad desk to confirm for you right away at any time, or reach out to us with more information and we'd be able to confirm: support.corsair.com