Key Features Dual Socket P+ (LGA-4189) 3rd Gen Intel® Xeon® Scalable Processors Intel® C621A Chipset 16 DIMM Slots; Up to 4TB DRAM; Up to 4TB Intel® Optane™ Persistent Memory (up to 6TB with DRAM) ; 3200/2933/2666 ECC DDR4 LRDIMM;RDIMM; Intel® Optane™ Persistent Memory 200 series 6 PCIe Gen 4.0 x16 (4 FHFL & 2 LP)