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ThinkSystem SR950

Form Factor: 4U rack
Processor: Up to 8x 2nd-gen Intel® Xeon® Platinum processors, up to 28x cores per processor, up to 205W
Memory: Up to 24TB in 96 slots, using 256GB DIMMs; 2666MHz / 2933MHz TruDDR4, supports Intel® Optane™ DC Persistent Memory
Drive Bays: Up to 24x 2.5" bays supporting SAS/SATA HDDs/SSDs, including 12x 2.5" NVMe SSDs
Expansion Slots: Up to 14x rear PCIe, (11x x16 +, 3x x8), 2x shared ML2 and PCIe x16) and 1x LOM; plus 2x front dedicated-RAID

ThinkSystem SR860 V2

Form Factor: 4U rack
Processor: 2x or 4x 3rd-gen Intel® Xeon® Processor Scalable family CPUs, up to 250W; Mesh topology with 6x UPI links
Memory: Up to 12TB of TruDDR4 memory in 48x slots; Memory speeds up to 3200MHz at 2 DIMMs per channel; Supports Intel® Optane™ Persistent Memory
Drive Bays: Up to 48x 2.5" drives; Supports up to 24x NVMe drives (16x with 1:1 connection); 2x 7mm or 2x M.2 drives for boot
Expansion Slots: Up to 14x PCIe 3.0expansion slots; Front: VGA, 1x USB 3.1, 1x USB 2.0; Rear: 2x USB 3.1, Serial port, VGA port, 1GbE dedicated management port

ThinkSystem SR860

Form Factor: 4U rack
Processor: 2x or 4x 2nd-gen Intel® Xeon® Processor Scalable family CPUs, up to 165W
Memory: Up to 6TB in 48x slots (with 4x CPUs) using 128GB DIMMs; 2666MHz / 2933MHz; TruDDR4
Drive Bays: Up to 16x 2.5" storage bays supporting SAS/SATA HDD and SSDs or up to 8x 2.5" NVMe SSD; plus up to 2x mirrored M.2 boot
Expansion Slots: Up to 11x PCIe plus 1x LOM; optional 1x ML2 slot

ThinkSystem SR850 V2

Form Factor: 2U rack
Processor: 2x or 4x 3rd-gen Intel® Xeon® Processor Scalable family CPUs, up to 250W; Mesh topology with 6x UPI links
Memory: Up to 12TB of TruDDR4 memory in 48x slots; Memory speeds up to 3200MHz at 2 DIMMs per channel; Supports Intel® Optane™ Persistent Memory
Drive Bays: Up to 24x 2.5" drives; Supports up to 24x NVMe drives (16x with 1:1 connection); 2x 7mm drives for boot
Expansion Slots: Up to 7x PCIe 3.0 expansion slots; Front: VGA, 1x USB 3.1, 1x USB 2.0; Rear: 2x USB 3.1, Serial port, VGA port, 1GbE dedicated management port

ThinkSystem SR850P

Form Factor: 2U rack
Processor: 4x 2nd-gen Intel® Xeon® Processor Scalable family CPUs, up to 205W
Memory: Up to 15TB in 48x slots using 24x 128GB DIMMs and 24x 512GB Intel® Optane™ DC Persistent Memory
Drive Bays: Up to 16x 2.5" storage bays supporting SAS/SATA HDD and SSDs or up to 8x 2.5" NVMe SSD; plus up to 2x mirrored M.2 boot
Expansion Slots: Up to 8x PCIe (with four x16) plus 1x LOM; optional 1x ML2 slot and LOM

ThinkSystem SR850

Form Factor: 2U rack
Processor: 2x or 4x 2nd-gen Intel® Xeon® Processor Scalable family CPUs, up to 165W
Memory: Up to 6TB in 48x slots using 128GB DIMMs; 2666MHz / 2933MHz TruDDR4
Drive Bays: Up to 16x 2.5" storage bays supporting SAS/SATA HDD and SSDs or up to 8x 2.5" NVMe SSD; plus up to 2x mirrored M.2 boot
Expansion Slots: Up to 9x PCIe plus 1x LOM; optional 1x ML2 slot