G 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. G Samsung HCU7000, 55", 4K Ultra HD, 3840 x 2160 pixels, LED, 16:9, Flat Samsung HCU7000. Display diagonal: 55", HD type: 4K Ultra HD, Display resolution: 3840 x 2160 pixels. Product color: Black, Panel mounting interface: 200 x 200 mm, Bezel type: 3 Bezel-less. High Dynamic Range (HDR) technology: Filmmaker Mode, High Dynamic Range 10+ (HDR10 Plus), Hybrid Log-Gamma (HLG), Operating system installed: Tizen. Content management solution: Samsung LYNK Cloud, Samsung LYNK DRM. Consumer Electronics Control (CEC): Anynet+