Kingston Technology 16GB Kit (4x4GB) 1600MHz DDR3 ECC Reg CL11 DIMM SR x8 with TS Intel Memory KVR16R11S8K4/16I 16GB Kit (4x4GB) of 1600MHz DDR3 Memory 240-pin Registered DIMM From the industry leader in PC Memory Backed by a lifetime warranty and free technical support Intel Certified Parts