Entry level workstation, single processor workstation supporting Intel® Xeon® E5-1600/2600 series processors, up to 256GB memory, PCI-E 3.0 2x (x16), 1x (x4 in x8), PCI-E 2.0 1x (x4 in x8), 1x PCI-32 expansion slots, 4x 3.5″ hot-swap HDD bays and optional 4x 2.5″ internal HDD/SDD bays. Features 900W high efficiency power supply.