Supports up to 6 GPUs Dual Socket P (LGA 3647) support 2nd Gen Intel Xeon Scalable 16 DIMMs; up to 4TB 3DS ECCDDR4-2933MHz RDIMM/LRDIMM, 6 PCI-E 3.0 x16 slots (FHFL), 1 PCI-E 3.0 x8 (in x16) slot (LP) 5x 80mm heavy duty fans with 2000W (1+1) Redundant Power Supplies