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| General Info | ||
|---|---|---|
| Model Number | Acer KA270H | Dell S2421HS |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2015 | 2020 |
| Brand | Acer | Dell |
| Model Number | KA270H | S2421HS |
| Alias | KA270Hbit | S2421HSX |
| Display | ||
| Screen Size Class | 27" (inches) | 24" (inches) |
| Diagonal Size | 27 in 68.6 cm 685.8 mm 2.25 ft |
23.8 in 60.4 cm 604.478 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 |
| Frame Rate Control | 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 % | 90.06 % |
| 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 | 4 ms | 4 ms |
| Display Average Response Time | 8 ms | |
| Display Coating | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 2.4 in 6.1 cm 61 mm 0.2 ft |
2.12 in 5.4 cm 53.8 mm 0.18 ft |
| Case Weight | 3.2 kg 7 lbs |
|
| Case Width with Stand | 25.2 in 64 cm 640 mm 2.1 ft |
21.17 in 53.8 cm 537.8 mm 1.76 ft |
| Case Height with Stand | 18.85 in 47.9 cm 478.8 mm 1.57 ft |
13.65 in 34.7 cm 346.8 mm 1.14 ft |
| Case Depth with Stand | 7.87 in 20 cm 200 mm 0.66 ft |
6.29 in 16 cm 159.7 mm 0.52 ft |
| Case Weight with Stand | 4.8 kg 11 lbs |
|
| Case Color | Black | Black, Silver |
| 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 3.5 mm Audio Out 1 x HDMI 1.4 1 x DisplayPort 1.2 |
| Audio | ||
| Features | ||
| Cool Features | Flicker-free technology HDCP (High-bandwidth Digital Content Protection) |
Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology |
| Extra Features | Anti-theft stand lock slot - Kensington S2421HS - silver S2421HSX - black |
|
| Ergonomics | ||
| Case Width | 25.2 in 64 cm 640 mm 2.1 ft |
21.17 in 53.8 cm 537.8 mm 1.76 ft |
| Case Height | 15 in 38.1 cm 381 mm 1.25 ft |
12.7 in 32.3 cm 322.6 mm 1.06 ft |
| Vesa Mount Support | Yes | Yes |
| VESA Interface Standard Size | 100 x 100 | 100 x 100 |
| Removable VESA Stand | Yes | Yes |
| Height Adjustment | No | Yes |
| Height Adjustment Range | 100 mm 10 cm 3.937 in 0.3281 ft |
|
| Landscape or Portrait Pivot Support | No | Yes |
| Left Pivot | 90 ° | |
| Right Pivot | 90 ° | |
| Left or Right Swivel Support | No | Yes |
| Left Swivel | 30 ° | |
| Right Swivel | 30 ° | |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 5 ° | 5 ° |
| Backward Tilt | 15 ° | 21 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 60 Hz | 48 Hz - 75 Hz |
| Horizontal Digital Frequency | 30 kHz - 83 kHz | |
| Screen Interpolation Measurement Unit | NULL | |
| Accessories | ||
| Extras | D-subt cable DVI-D cable HDMI cable |
HDMI cable |
| Certificates and Standards | ||
| Licenses | ENERGY STAR | ENERGY STAR 8.0 EPEAT RoHS TCO Certified TUV Flicker Free TUV Low Blue Light |
| 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 KA270H | Dell S2421HS |
