Lenovo ThinkSystem SR650 Processor Up to two 205W Intel Xeon Scalable family processors, Bronze, Silver, Gold, or Platinum. Up to 28 cores at 2.5GHz, up to 3.6GHz with 4 cores. Two processors are connected with two UPI (Ultra Path Interconnect) links up to 10.4GT/s | Up to 24 DIMM sockets (12 DIMMs per processor) with up to 3TB with 3DS LRDIMMs and up to 2666MHz DDR4 memory speed | ECC | memory mirroring | Memory Sparing | Intel C624 Chipset | Up to 24x 2.5" hot-swap SATA/SAS HDDs or 12x 3.5" hot-swap SAS/SATA for max. 120TB | Max. 4 AnyBay | Optional up to two internal M.2 SSD (mirroring) | RAID 530-8i standard support RAID 0/1/10/5/50 | RAID 930-16i on 3.5" model | Upto six PCIe 3.0 slots | One LOM slot for customized LOM with upto four RJ-45 or SFP+ ports, upto 10GbE | No Internal Optical Drive | Three USB 3.0, one USB 2.0 | XClarity Controller Standard, optional upgrade to Advanced or Enterprise | VGA Matrox G200 | Optional two GPU | Upto two 550W, 750W, 1100W or 1600W Hot-Swap Platinum and Titanium Power Supply | 2U rack | Warranty 3years P/L O/S 24x7 | Standard Without Keyboard + Mouse