Manufacturer: Acer, Inc. Manufacturer Part Number: UMMD1AAA01. Brand Name: Acer. Product Series: DM1. Product Model: DM431K A. Product Name: DM431K A Widescreen LED Monitor. Product Type: LED Monitor. [Technical Information] Number of Screens: 1. Screen Size Class: 43". Viewable Screen Size: 43". Active Display Area (mm): 941x529. Screen Mode: 4K UHD. Screen Surface: Anti-glare. Panel Technology: Vertical Alignment (VA). Response Time: 4 ms. Response Time Details: 4ms GTG. Aspect Ratio: 16:9. Pixel Pitch: 9.6 mil. Horizontal Viewing Angle: 178°. Vertical Viewing Angle: 178°. Mount Type: Wall Mountable. Backlight Technology: LED. Features: HDR10. Vertical Frequency: 60 Hz. Pivot: No. Cover Glass: No. [Video] Maximum Resolution: 3840 x 2160. Maximum Resolution (DisplayPort): 3840x2160@60Hz. Maximum Resolution (HDMI): 3840x2160@60Hz. Standard Refresh Rate: 60 Hz. Color Supported: 1.07 Billion Colors. Color Depth: 8-bit+FRC (10-bit with Dithering). Native Contrast Ratio: 5,000:1. Dynamic Contrast Ratio: 100,000,000:1. Brightness: 250 Nit. Tearing Prevention Technology: Adaptive Sync. Color Gamut: 95% sRGB. [Audio] Number of Speakers: 2.0. Speakers: Yes. Speaker Output Power: 5 W. [Interfaces/Ports] HDMI: Yes. HDMI Version: 2.0. Headphone: Yes. DisplayPort: Yes. DisplayPort Version: 1.2. Total Number of HDMI Ports: 2. Number of DisplayPorts: 1. [Power Description] Input Voltage Range: 120V to 230V. Standby Power Consumption (Energy Star): 500 mW. Off-Mode Power Consumption (Energy Star): 300 mW. [Physical Characteristics] VESA Mount Compatible: Yes. VESA Mount Standard: 200 x 200. Color Family: Black. Color: Black. Height: 18.2 ft. Width: 21.5 ft. Depth: 33.5". Height with Stand: 93.39". Width with Stand: 31.32 ft. Depth with Stand: 19.75 ft. Weight (Approximate): 13.23 lb. Weight with Stand (Approximate): 13.67 lb. [Miscellaneous] Package Contents: 1 x DM431K A Wi