Kingston ValueRAM 4GB 1066MHz DDR3 Non-ECC CL7 SODIMM Notebook Memory,Kingston Technology Company, Inc.,KVR1066D3S7/4G" /> 4 GB module of 1066MHz DDR3 Notebook Memory Specifically designed and tested for compatibility in various makes and models of laptop computers 204-pin unbuffered SODIMM From the industry leader in PC memory Backed by a lifetime warranty and free technical support