HP 951XL Yellow Officejet Ink Cartridge. Operating relative humidity range: 10 - 90 %, Storage temperature range (T-T): -40 - 60 °C, Operating temperature range (T-T): 5 - 35 °C. Dimensions (WxDxH): 114 x 126 x 25 mm, Weight: 50000 g, Package dimensions (WxDxH): 114 x 126 x 25 mm