"MINI-ITX/MICRO-ATX/FLEX/ATX; WELDED 0.090 INCH ALUMINUM CHASSIS; MIL-STD 810 AND 461 TAILORED; PS/2 STYLE AUTO SELECT POWER SUPPLY; SHOCK/VIBRATION ISOLATED DRIVE CAGE; 95/220 VAC, 50-400 HZ(AUTO SENSING), DC POWER SUPPLY +12VDC OR +28VDC(OPTIONAL); OPERATING TEMPERATURE RANGE:NEGATIVE 20 TO 50 DEGREE CELSIUS; STORAGE TEMP RANGE:NEGATIVE 50 TO 80 DEGREE CELSIUS"