1pc of 4GB PC3-10600 CL9 16c 256x8 DDR3-1333 204pin SODIMM.

Lifetime exchange or repair warranty against manufacturing defects.

We don't use Generic module to avoid incompatibility.

Guaranteed to work in your notebook or you get your money back.

Compatible with:

 Samsung Series 9 Notebook NP900X3A 

 Samsung Series 9 Notebook NP900X3A-A02 DDR3 2

Maximum Memory: 4GB using a 32-bit Operating System

                               8GB using a 64-bit Operating System

SOCKETS: 2

If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation). Maximum configurations require a 64-bit operating system.