HP 54 Black Inkjet Print Cartridge. Operating relative humidity range: 20 - 80 %, Storage temperature range (T-T): -5 - 40 °C, Operating temperature range (T-T): 15 - 35 °C. Package weight: 83 g, Weight: 58 g, Package dimensions (WxDxH): 141 x 113 x 37 mm