8GB, SRx8 DIMM, Single Rank DDR4 SDRAM2666 MT/S (PC4-21300 ),2,666 MHz,CL19 latencyVOLTAGE 1.2V , PIN COUNT-288-pinBuffered DIMM Desktop SDRAM,Compatible with systems that take DDR4 2666MT/s UDIMM memory, also with OEM systems and warrantiesSpeeds up to 3200 MT/s and faster data rates are expe..