Now upgrade your RAM. An extension of the main memory in your PC or Mac normally brings in the highest enhancement in performance!DDR4-2666 U-DIMM (BRANDED)Transcend's DDR4-2666 U-DIMM memory modules have been built to the strictest specifications with the best available chips and components and have been rigorously tested to be fully compatible with Intel® Coffee Lake and AMD Ryzen ⢠processors. Each memory module has a rated power of 2666 Mbps, which was a significant increase in data transfer efficiency through higher bandwidth of up to 21 GB/s. transcend's DDR4-2666 U-DIMM module operates at a rated voltage of only 1.2V, was designed to ensure that both the operating temperature and the electrical load of the storage controller can be reduced to save more energy.This text is machine translated.