HP 350XL Black Inkjet Print Cartridge. Page yield footnote: ISO/IEC 24711. Operating relative humidity range: 20 - 80 %, Storage temperature range (T-T): 15 - 35 °C, Storage relative humidity range: 5 - 95 %. Weight: 65 g, Package dimensions (WxDxH): 116 x 36 x 115 mm