To maintain quality and integrity, this product is sold only as a completely-assembled system (with minimum 2 CPUs, 2 DIMMs, 23 HDDs, and SAS controller kit). 1. Single Node High density, 2 rear mirrored boot drives, 4 NVMe SSD drives for caching 2. Dual Socket P (LGA 3647) support 2nd Gen Intel Xeon Scalable processors (Cascade Lake/Skylake) 3. 16 DIMMs; up to 4TB 3DS ECC DDR4-2933MHz RDIMM/LRDIMM, Supports Intel Optane DCPMM 4. 2 PCI-E 3.0 x16 (HHHL), 1 PCI-E 3.0 x8 (HHHL) 5. 90x 3.5"/2.5" Hot-swap SAS3/SATA3 drives, 2x Fixed slim SATA SSD, 2x NVMe M.2 (form factor: 2280 and 22110) 6. Dual Broadcom 3616 controllers (IT Mode) or Broadcom 3916 RAID 7. Server remote management: IPMI 2.0 / KVM over LAN / Media over LAN 8. 6x 8cm hot-swap counter-rotate redundant PWM cooling fans 9. 2600W Redundant Power Supplies Titanium Level (96%)