HP 771 3-pack 775-ml Light Grey Designjet Ink Cartridges. Operating relative humidity range: 20 - 80 %, Storage temperature range (T-T): -40 - 60 °C, Operating temperature range (T-T): 5 - 40 °C. Package weight: 3.39 kg, Weight: 3 kg, Package dimensions (WxDxH): 216 x 289 x 143 mm