HP JE342A. Safety: UL 60950-1, EN 60950-1, Electromagnetic compatibility: EN 55022 Class B; EN 55024; FCC CFR 47 Part 15 Class B; EN 300 386; EN 61000-3-2; EN 61000-3-3. Operating relative humidity range: 10 - 90 %. Power requirements: 100-240 VAC, 50 / 60 Hz. Dimensions (WxDxH): 483 x 351 x 17.5 mm. Colour of product: Black