D means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Regulation 2017/1369/EU. D Samsung RZ32C7BD6S9, 323 L, 14.8 kg/24h, SN-T, No Frost system, D, Stainless steel Samsung RZ32C7BD6S9. Freezer net capacity: 323 L, Climate class: SN-T, Freezing capacity: 14.8 kg/24h, Noise level: 36 dB, Star rating: 4*, No Frost system. Door hinge: Left. Lamp type: LED. Energy efficiency class: D, Annual energy consumption: 210 kWh. Product color: Stainless steel