Kingston memory is designed manufactured and rigorously tested to meet the exact specifications of each brand name system. It's guaranteed to be compatible and backed by a lifetime warranty and legendary Kingston reliability. SoDIMM 4 GB memory smoothly executes complex apps and games204-pin-pin DDR3 SDRAM interface synchronizes electrical and clock signals for an efficient data transfer rateUp to 1600 MHz speed with CL11 latency for smooth computer performance