RAM Corsair Vengeance 4GB High Performance Laptop Memory Upgrade Kit:This state-of-the-art memory module for modern powerful laptops, with a DDR3 memory slot, offers upgrade capacity and speed. It is an ideal choice for the second generation Intel Core processor, which comes with a much slower module than the processor is capable of supporting. Simply insert the module and sit back as its automatically detected and begins operating at full frequency, immediately bringing you higher response processing. This latest generation DDR3 module delivers higher frequencies, increased performance and lower power consumption compared to prior modules. The timing of the module is CL9-9-9-24 and adheres to PC3-12800 certification. This makes it an excellent choice if you need to expand the RAM in your laptop - and especially if you require high performance when programming, working with video or gaming.Specifications: Type: DDR3Capacity: 4GBMaximum operating frequency: 1600MHzTiming: CL9-9-9-24Certification: PC3-12800Operating voltage: 1.5VInterface: 204-pin