Kingston is the industry leader in PC memory. Designed with the whitebox user and system integrator in mind, Kingston ValueRAM products are engineered to meet industry standard specifications and rigorously tested to ensure quality. Kingston ValueRAM is ideal for those who purchase memory by spec and are looking for competitively priced generic memory that is 100-percent tested to meet industry specifications. Included in the package are four 16GB modules of 1866MHz DDR3 memory. Specs are standard DDR3, 1866MHz, ECC, CL13, Dual Rank, X4, 1.5V, Registered, DIMM.