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| General Info | ||
|---|---|---|
| Model Number | HP V28 4K | Acer R270U |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2020 | 2020 |
| Brand | HP | Acer |
| Model Series | R0 | |
| Model Number | V28 4K | R270U |
| Alias | 8WH58AA | |
| Display | ||
| Screen Size Class | 28" (inches) | 27" (inches) |
| Diagonal Size | 27.9 in 70.9 cm 708.538 mm 2.32 ft |
27 in 68.6 cm 685.8 mm 2.25 ft |
| Screen Width | 24.45 in 62.1 cm 620.928 mm 2.04 ft |
23.49 in 59.7 cm 596.736 mm 1.96 ft |
| Screen Height | 13.44 in 34.1 cm 341.28 mm 1.12 ft |
13.22 in 33.6 cm 335.664 mm 1.1 ft |
| Display Type | TN | IPS |
| Display Bit Depth | 8 bits (6 bits + FRC) | |
| Frame Rate Control | Yes | |
| Max Number of Colors | 16777216 | |
| Bits | 24 | |
| Screen Aspect Ratio | 16:9 | 16:9 |
| Screen Resolution | 3840 x 2160 | 2560 x 1440 |
| Screen Pixel Pitch | 0.161 mm | 0.233 mm |
| Screen Pixel Density | 157 ppi | 109 ppi |
| Screen-to-Body Ratio | 83.94 % | 90.72 % |
| Backlight Source | W-LED | W-LED |
| Screen Brightness | 300 cd/m² | 350 cd/m² |
| Static Screen Contrast | 1000 : 1 | 1000 : 1 |
| Dynamic Screen Contrast | 100000000 : 1 | |
| Screen Horizontal Viewing Angle | 170 ° | 178 ° |
| Screen Vertical Viewing Angle | 170 ° | 178 ° |
| Display Coating | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) |
| HDR | HDR10 | |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 2.21 in 5.6 cm 56.2 mm 0.18 ft |
1.6 in 4.1 cm 40.6 mm 0.13 ft |
| Case Weight | 3.54 kg 8 lbs |
|
| Case Width with Stand | 25.94 in 65.9 cm 658.8 mm 2.16 ft |
24.01 in 61 cm 609.9 mm 2 ft |
| Case Height with Stand | 18.38 in 46.7 cm 466.8 mm 1.53 ft |
17.49 in 44.4 cm 444.2 mm 1.46 ft |
| Case Depth with Stand | 8.81 in 22.4 cm 223.8 mm 0.73 ft |
|
| Case Weight with Stand | 5.5 kg 12 lbs |
3.93 kg 9 lbs |
| Case Color | Silver | Black, Silver |
| Hardware | ||
| Built-in Camera | No | No |
| Network | Wi-Fi Direct | |
| Connectivity | 2 x HDMI 2.0 1 x DisplayPort 1.2 1 x 3.5 mm Audio Out 3 x USB 3.2 (Type-A; Gen 1; downstream) 1 x USB 3.2 (Type-B; Gen 1; upstream) |
1 x 3.5 mm Audio Out 1 x HDMI 2.0 1 x DisplayPort 1.4 |
| Audio | ||
| Audio Speakers | 2 x 3W | 2 x 2W |
| Features | ||
| Cool Features | Flicker-free technology Low Blue Light 3-sided Borderless Design AMD FreeSync technology |
Blue Light Filter DDC/CI ZeroFrame Design Flicker-free technology Adaptive Contrast Management (ACM) AMD FreeSync technology |
| Extra Features | Anti-theft stand lock slot - Kensington | Anti-theft stand lock slot - Kensington |
| Ergonomics | ||
| Case Width | 25.94 in 65.9 cm 658.8 mm 2.16 ft |
24.01 in 61 cm 609.9 mm 2 ft |
| Case Height | 15.09 in 38.3 cm 383.2 mm 1.26 ft |
14.25 in 36.2 cm 362 mm 1.19 ft |
| Vesa Mount Support | Yes | Yes |
| VESA Interface Standard Size | 100 x 100 | 100 x 100 |
| Removable VESA Stand | Yes | Yes |
| Height Adjustment | Yes | No |
| Height Adjustment Range | 100 mm 10 cm 3.937 in 0.3281 ft |
|
| Landscape or Portrait Pivot Support | No | No |
| Left or Right Swivel Support | Yes | No |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 5 ° | 5 ° |
| Backward Tilt | 16 ° | 25 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 40 Hz - 60 Hz | 48 Hz - 75 Hz |
| Horizontal Digital Frequency | 30 kHz - 180 kHz | |
| Screen Interpolation Measurement Unit | NULL | NULL |
| Accessories | ||
| Extras | DisplayPort cable HDMI cable |
HDMI cable |
| Certificates and Standards | ||
| Licenses | Australian-New Zealand MEPS BSMI CB CCC CE CEL cTUVus EAC FCC ISO 9241-307 KC/KCC NOM PSB TUV-S VCCI Vietnam MEPS WEEE ISC ICE |
CE ISO9241-307 class II MPR II TÜV GS |
| Usage and Storage Requirements | ||
| Safe Operating Temperature Level | 5 °C - 35 °C 41 °F - 95 °F |
0 °C - 40 °C 32 °F - 104 °F |
| Safe Operating Humidity Level | 20 % - 80 % | 10 % - 80 % |
| Internal Storage Temperature | -20 °C - 60 °C -4 °F - 140 °F |
-20 °C - 6 °C -4 °F - 42.8 °F |
| Internal Storage Humidity | 5 % - 90 % | 5 % - 90 % |
| Max Operating Altitude | 5000 | 50000 |
| Max Storage Altitude | 12192 | 12192 |
| HP V28 4K | Acer R270U |
