HP Compaq Elite 8300 All-in-One PC (ENERGY STAR). Motherboard chipset: Intel Q77 Express. Memory slots: 2x SO-DIMM. Chassis type: All-in-One. Dimensions (WxDxH): 561.9 x 195.6 x 436.2 mm, Weight: 9850 g. Operating relative humidity range: 10 to 90%RH, Operating temperature range (T-T): 10 - 35 °C