4x 3.5" drive trays INCLUDED2x PSU INCLUDED2x Heatsink INCLUDEDNO RAILS INCLUDEDSystem Board X11DPU1. Dual Socket P (LGA 3647) support 2nd Gen Intel® Xeon® Scalable processors (Cascade Lake/Skylake)‡2. 24 DIMMs; up to 6TB 3DS ECC DDR4-2933MHz† RDIMM/LRDIMM, Supports Intel® Optane™ DCPMM††3. 2 PCI-E 3.0 x16 slots (FH, 10.5" L), 2 PCI-E 3.0 x8 slots (1 LP, 1 internal LP)4. 2x 10GBase-T Ethernet ports5. 4 Hot-swap 3.5" Drive Bays; Optional M.2 NVMe and SATA3 ports6. 8 Heavy duty fans w/ optimal fan speed control7. 750W Redundant Power Supplies Platinum Level (94%+)