DDR4 U-DIMM Designed for high-end desktop PCs, Transcend's DDR4 U-DIMM memory modules are fully compatible with Intel Haswell-E CPU with X99 chipset. Each module is constructed with top quality DRAM chips and rated at 2133/2400MHz, maxmizing data transmission efficiency with higher bandwidth of up to 17/19GB/s. Operated at a nominal voltage of just 1.2V, Transcend's DDR4 U-DIMMs reduce electrical load on the memory controller, consuming up to 40% less power compared to 1.5V standard DDR3 DIMMs.