This Dell 8GB PC4-21300 DDR4-2666MHz ECC Registered CL19 288-Pin DIMM 1.2V Single Rank Memory Module. This Dell 8GB (1X8GB) 2666MHz PC4-21300 CL19 ECC Registered 1Rx8 1.2V DDR4 SDRAM 288-pin DIMM Memory Module is a formidable component designed to enhance the performance and reliability of servers. Its impressive specifications, including DDR4 technology, ECC functionality, 1Rx8 configuration, 1.2V operating voltage, and 288-pin DIMM form factor, collectively make it a compelling choice for IT professionals seeking to optimize their server infrastructure.