VisionTek 2 x 2GB PC3-10600 DDR3 1333MHz 240-pin DIMM Memory Module - 4 GB (2 x 2GB) - DDR3-1333/PC3-10600 DDR3 SDRAM - 1333 MHz - CL9 - 1.50 V - Non-ECC - Unbuffered - 204-pin - SoDIMM - Lifetime Warranty

Up to 1333 MHz speed with CL9 latency for smooth computer performance 4 GB of memory to refine your computers performance DDR3 SDRAM interface multiplexes 2-bit data from memory cell and I/O buses to minimize processor idle time and enhance your computers performance