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| General Info | ||
|---|---|---|
| Model Number | Acer K272HL | Dell E2421HN |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2014 | 2020 |
| Brand | Acer | Dell |
| Model Number | K272HL | E2421HN |
| Alias | K272HLbid | |
| Display | ||
| Screen Size Class | 27" (inches) | 24" (inches) |
| Diagonal Size | 27 in 68.6 cm 685.8 mm 2.25 ft |
23.81 in 60.5 cm 604.7 mm 1.98 ft |
| Screen Width | 23.54 in 59.8 cm 597.888 mm 1.96 ft |
20.75 in 52.7 cm 527.04 mm 1.73 ft |
| Screen Height | 13.24 in 33.6 cm 336.312 mm 1.1 ft |
11.67 in 29.6 cm 296.46 mm 0.97 ft |
| Display Type | VA | IPS |
| Display Bit Depth | 8 bits | 8 bits (6 bits + FRC) |
| Frame Rate Control | No | Yes |
| Max Number of Colors | 16777216 | 16777216 |
| Bits | 24 | 24 |
| Screen Aspect Ratio | 16:9 | 16:9 |
| Screen Resolution | 1920 x 1080 | 1920 x 1080 |
| Screen Pixel Pitch | 0.311 mm | 0.275 mm |
| Screen Pixel Density | 81 ppi | 92 ppi |
| Screen-to-Body Ratio | 82.46 % | 86.91 % |
| Backlight Source | W-LED | W-LED |
| NTSC 1953 | 72 % | |
| Screen Brightness | 300 cd/m² | 250 cd/m² |
| Static Screen Contrast | 1000 : 1 | |
| Dynamic Screen Contrast | 100000000 : 1 | |
| Screen Horizontal Viewing Angle | 178 ° | 178 ° |
| Screen Vertical Viewing Angle | 178 ° | 178 ° |
| Display Minimum Response Time | 6 ms | 5 ms |
| Display Average Response Time | 8 ms | |
| Display Coating | Anti-glare/Matte (3H) | Anti-glare/Matte |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 2.4 in 6.1 cm 61 mm 0.2 ft |
2.06 in 5.2 cm 52.4 mm 0.17 ft |
| Case Weight | 4.77 kg 10 lbs |
3.25 kg 7 lbs |
| Case Width with Stand | 25.2 in 64 cm 640 mm 2.1 ft |
21.68 in 55.1 cm 550.6 mm 1.81 ft |
| Case Height with Stand | 18.19 in 46.2 cm 462 mm 1.52 ft |
16.52 in 42 cm 419.7 mm 1.38 ft |
| Case Depth with Stand | 9.8 in 24.9 cm 249 mm 0.82 ft |
6.73 in 17.1 cm 171 mm 0.56 ft |
| Case Weight with Stand | 4.27 kg 9 lbs |
|
| Case Color | Black | Black |
| Hardware | ||
| Built-in Camera | No | No |
| Connectivity | 1 x D-sub 1 x HDMI 1.4 (MHL) 1 x DVI-D Dual Link |
1 x HDMI 1.4 1 x D-sub |
| Audio | ||
| Features | ||
| Cool Features | Flicker-free technology HDCP (High-bandwidth Digital Content Protection) |
Flicker-free technology Low Blue Light Power Nap ComfortView Dell Display Manager |
| Extra Features | Security lock slot | |
| Ergonomics | ||
| Case Width | 25.2 in 64 cm 640 mm 2.1 ft |
21.68 in 55.1 cm 550.6 mm 1.81 ft |
| Case Height | 15 in 38.1 cm 381 mm 1.25 ft |
12.85 in 32.7 cm 326.5 mm 1.07 ft |
| Vesa Mount Support | Yes | Yes |
| VESA Interface Standard Size | 100 x 100 | 100 x 100 |
| Removable VESA Stand | Yes | Yes |
| Height Adjustment | No | No |
| Landscape or Portrait Pivot Support | No | No |
| Left or Right Swivel Support | No | No |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 5 ° | 5 ° |
| Backward Tilt | 25 ° | 21 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 60 Hz | 56 Hz - 76 Hz |
| Horizontal Digital Frequency | 30 kHz - 83 kHz | |
| Screen Interpolation Measurement Unit | NULL | |
| Accessories | ||
| Extras | D-subt cable DVI-D cable HDMI cable |
D-Sub cable HDMI cable |
| Certificates and Standards | ||
| Licenses | ENERGY STAR | Energy Star EPEAT TCO Certified Display |
| Usage and Storage Requirements | ||
| Safe Operating Temperature Level | 0 °C - 40 °C 32 °F - 104 °F |
|
| Safe Operating Humidity Level | 10 % - 80 % | |
| Internal Storage Temperature | -20 °C - 60 °C -4 °F - 140 °F |
|
| Internal Storage Humidity | 5 % - 90 % | |
| Max Operating Altitude | 5000 | |
| Max Storage Altitude | 12192 |
| Acer K272HL | Dell E2421HN |
