Kingston Technology 4GB Server Memory Module 4 Not a kit (Single) DDR3 1333 (PC3 10666) 240-Pin SDRAM KTD-PE313/4G,Kingston Technology Company, Inc.,KTD-PE313/4G" /> One 4GB module of DDR3 Server Memory Specifically designed and tested for compatibility in various makes and models of servers From the industry leader in PC memory Backed by a lifetime warranty and free technical support