Asrock 90SSXG6X0-A0100000B RM237-C622LM 2U; 1+1 Socket P (LGA3647) for 2nd Gen. Intel Xeon Scalable; 12 Hot-swap 3.5 SAS /SATA [Front] +2 Hot-swap 2.5 SAS/SATA [Rear] + [Int]2 M-key (PCIe3.0 x4 or SAT