Kingston Technology 8GB DDR4 2133MHz ECC 288-pin Registered CL15 DIMM 1Rx4 KVR21R15S4/8 DDR4 provides increased performance and bandwidth while decreasing the voltage saving up to 40% in power used One 8GB module of 2133MHz DDR4 Server Memory 288-pin Registered DIMM From the industry leader in PC Memory Backed by a lifetime warranty and free technical support