Corsair Memory is specifically designed for rock-solid stability in demanding applications. Data lines are carefully engineered for noise immunity; clock lines are optimized for minimum skew. All modules use JEDEC-compliant six-layer. Allow convenient and fast access to the stored information your computer is actively using for maximum efficiency No matter how heavy and numerous the applications that you are using, 1333 MHz memory speed with unbuffered signal will run them smoothly 4 GB memory allows you to have more programs open at a time 204-pin-pin DDR3-1333/PC3-10600 interface multiplexes 2-bit data from memory cell and I/O buses to minimize processor idle time and enhance your computer's performance 1 x 4GB modules for enhanced memory reliability and productivity 204-pin for optimal performance and maximum reliability CL9 CAS latency for faster, dependable clock cycles which allows quick access and retrieval of data and information Notebook device support for your ram module to allow enhanced performance and reliable memory solution SoDIMM form factor with 204-pin and 4 GB memory size for enhanced performance and speed to allow maximum usability Unbuffered signal processing for dependable programmability of the processor for easy optimization of digital signals