Approved Memory 4GB DDR3 SDRAM Memory Module - For Notebook - 4 GB - DDR3-1600/PC3-12800 DDR3 SDRAM - 1600 MHz - Unbuffered - 204-pin - SoDIMM - Lifetime Warranty

No matter how heavy and numerous the applications that you are using, 1600 MHz memory speed with Unbuffered signal will run them smoothly 4 GB of memory to refine your computers performance 204-pin-pin DDR3 SDRAM interface multiplexes 2-bit data from memory cell and I/O buses to minimize processor idle time and enhance your computers performance