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| General Info | ||
|---|---|---|
| Model Number | Dell Alienware AW3418HW | Dell U3821DW |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2017 | 2021 |
| Brand | Dell | Dell |
| Model Series | UltraSharp | |
| Model Number | Alienware AW3418HW | U3821DW |
| Display | ||
| Screen Size Class | 34" (inches) | 38" (inches) |
| Diagonal Size | 34.13 in 86.7 cm 867 mm 2.84 ft |
37.52 in 95.3 cm 952.9 mm 3.13 ft |
| Screen Width | 31.49 in 80 cm 799.8 mm 2.62 ft |
35.04 in 89 cm 890 mm 2.92 ft |
| Screen Height | 13.18 in 33.5 cm 334.8 mm 1.1 ft |
15.27 in 38.8 cm 387.8 mm 1.27 ft |
| Display Curvature | 3800 | 2300 |
| Display Type | IPS | IPS |
| Display Bit Depth | 8 bits | 10 bits |
| Frame Rate Control | No | |
| Max Number of Colors | 16777216 | 1073741824 |
| Bits | 24 | 30 |
| Screen Aspect Ratio | 21:9 | 24:10 |
| Screen Resolution | 2560 x 1080 | 3840 x 1600 |
| Screen Pixel Pitch | 0.31 mm | 0.229 mm |
| Screen Pixel Density | 81 ppi | 109 ppi |
| Screen-to-Body Ratio | 89.34 % | 98.38 % |
| Backlight Source | W-LED | W-LED |
| DCI P3 | 95% | |
| sRGB | 99 % | 100 % |
| Screen Brightness | 300 cd/m² | 300 cd/m² |
| Static Screen Contrast | 1000 : 1 | 1000 : 1 |
| Screen Horizontal Viewing Angle | 178 ° | 178 ° |
| Screen Vertical Viewing Angle | 178 ° | 178 ° |
| Display Minimum Response Time | 4 ms | 5 ms |
| Display Average Response Time | 8 ms | |
| Display Coating | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) |
| HDR | DisplayHDR 600 | |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 3.75 in 9.5 cm 95.15 mm 0.31 ft |
4.03 in 10.2 cm 102.4 mm 0.34 ft |
| Case Weight | 6.91 kg 15 lbs |
8.8 kg 19 lbs |
| Case Width with Stand | 32.04 in 81.4 cm 813.83 mm 2.67 ft |
35.21 in 89.4 cm 894.3 mm 2.93 ft |
| Case Height with Stand | 17.42 in 44.2 cm 442.44 mm 1.45 ft |
17.47 in 44.4 cm 443.8 mm 1.46 ft |
| Case Depth with Stand | 12.56 in 31.9 cm 319.09 mm 1.05 ft |
9.89 in 25.1 cm 251.2 mm 0.82 ft |
| Case Weight with Stand | 11.81 kg 26 lbs |
13.6 kg 30 lbs |
| Case Color | Gray | Black |
| Hardware | ||
| Built-in Camera | No | No |
| Connectivity | 1 x HDMI 1.4 1 x DisplayPort 1.2 2 x 3.5 mm Audio Out 4 x USB 3.0 (downstream) 1 x USB 3.0 (upstream) |
1 x USB 3.2 (Type-C; upstream; 90W; DP Alt Mode) 4 x USB 3.2 (Type-A; Gen 1; downstream) 2 x HDMI 2.0 1 x 3.5 mm Audio Out (line-out for speakers) 1 x DisplayPort 1.4 1 x Ethernet RJ45 1 x USB 3.2 (Type-B; Gen 1; upstream) 1 x USB 3.2 (Type-C; downstream) |
| Audio | ||
| Audio Speakers | 2 x 9W | |
| Features | ||
| Cool Features | Low Blue Light Nvidia G-SYNC Technology Flicker-free technology HDCP (High-bandwidth Digital Content Protection) |
Low Blue Light Picture-by-Picture Picture-in-Picture Flicker-free technology KVM Switch |
| Extra Features | Security lock slot | Security lock slot |
| Ergonomics | ||
| Case Width | 32.04 in 81.4 cm 813.83 mm 2.67 ft |
35.21 in 89.4 cm 894.3 mm 2.93 ft |
| Case Height | 14.5 in 36.8 cm 368.28 mm 1.21 ft |
15.44 in 39.2 cm 392.3 mm 1.29 ft |
| Vesa Mount Support | Yes | Yes |
| VESA Interface Standard Size | 100 x 100 | 100 x 100 |
| Removable VESA Stand | Yes | Yes |
| Height Adjustment | Yes | Yes |
| Height Adjustment Range | 130 mm 13 cm 5.1181 in 0.4265 ft |
120 mm 12 cm 4.7244 in 0.3937 ft |
| Landscape or Portrait Pivot Support | No | No |
| Left or Right Swivel Support | Yes | Yes |
| Left Swivel | 20 ° | 30 ° |
| Right Swivel | 20 ° | 30 ° |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 5 ° | 5 ° |
| Backward Tilt | 25 ° | 21 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 30 Hz - 160 Hz | 56 Hz - 76 Hz |
| Horizontal Digital Frequency | 66 kHz - 166 kHz | 30 kHz - 100 kHz |
| Screen Interpolation Measurement Unit | NULL | |
| Accessories | ||
| Extras | DisplayPort cable DisplayPort cable - mini-DP to DP USB 3.0 upstream cable |
DisplayPort cable HDMI cable USB Type-C cable USB Type-B 3.2 Gen 1 cable |
| Certificates and Standards | ||
| Licenses | RoHS Compliant | ENERGY STAR 8.0 EPEAT Gold RoHS TAA Availability TCO Certified Displays |
| Usage and Storage Requirements | ||
| Safe Operating Temperature Level | 0 °C - 40 °C 32 °F - 104 °F |
0 °C - 40 °C 32 °F - 104 °F |
| Safe Operating Humidity Level | 10 % - 80 % | 10 % - 80 % |
| Internal Storage Temperature | -20 °C - 60 °C -4 °F - 140 °F |
-20 °C - 60 °C -4 °F - 140 °F |
| Internal Storage Humidity | 5 % - 90 % | 5 % - 90 % |
| Max Operating Altitude | 5000 | 5000 |
| Max Storage Altitude | 12192 | 12192 |
| Dell Alienware AW3418HW | Dell U3821DW |
