Speed / Performance Every app and program you run uses memory, all of them conpeting for space.
Avoid system slowdowns or bottlenecks by giving programs more memory to use. Every VisionTek memory module is built and tested to the JEDEC Standard to deliver assured speed and reliability. VisionTek 900451 4GB DDR3 1600 MHz (PC3-12800) CL9 SODIMM - Notebook - DDR3 RAM - 4GB 1600MHz SODIMM - PC3-12800 Laptop Memory Module 204-pin CL 9 Unb By upgrading your system memory, you provide more space for programs and apps to run, creating a better performing system Easy to Install Memory modules are easy to install, by following your system owner's manual, in just a few minutes time, you can install memory. 900451 Details: Capacity - 2GB & 4GB Speed - DDR3 1600 - PC3-12800 Type - 204-pin SODIMM CAS Latency - 9 Maximizing your system memory is the most cost-effective and easy DIY installation solution.