IBM (7914ITN) – x3550 M4, 2 x Intel Xeon Processor E5-2667 6C 2.9GHz 15MB 1600MHz 130W, 2 x 4GB (1x4GB, 2Rx8, 1.5V) PC3-12800 CL11 ECC DDR3 1600MHz LP RDIMM Memory (12 DIMM slots per Processor and Max 24 x DIMM Slots), 4 x 2.5″ SAS Hot Swap (Max 8 HDD Bays), 2 x PCI-E Slots ( x16 LP + x8 FH/HL), 4 x GbE Network Ports, DVDRW, ServeRAID M5110 (RAID-0/1/10), Integrated Management Module (iMM), 1 x 750W High Efficiency Platinum AC Hot Swap Power Supply (max: 2), 3Yrs Warranty

IBM (7158IHA) – x3630 M4, Intel Xeon E5-2440 6C 2.4GHz 15MB Cache 1333MHz 95W, 1 x 4GB (1x4GB, 2Rx8, 1.35V) PC3L-10600 CL9 ECC DDR3 1333MHz LP RDIMM Memory (6 DIMM slots per Processor and Max 12 x DIMM Slots), 12 x 3.5″ Hot Swap SATA HDDs (Max 8 HDD Bays), 2 x PCI-E Slots ( x8 FH/FL + x8 FH/HL) + 2 PCI-E x8 Low Profile Slots, 4 GbE Network Ports, ServeRAID M5110 with M5100 1GB Flash and Supercap (RAID-0/1/10/5/50), No internal Optical Drive Support, Integrated Management Module (iMM), 1 x 750W High Efficiency Platinum AC Power Supply (Max 2), 3Yrs Warranty