The photo paper "Kp-108in (148 x 100 mm, 108 x)" with the manufacturer product ID 3115B001 is compatible with the Canon Selphy CP740 printer. This photo paper is specially designed for dye-sublimation printing with the Selphy CP740 and corresponds to the 100 x 148 mm postcard format supported by the printer. You can therefore use this photo paper for your Selphy CP740 without hesitation.