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| General Info | ||
|---|---|---|
| Model Number | Dell UltraSharp U2711 | Dell P2421DC |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2010 | 2020 |
| Brand | Dell | Dell |
| Model Number | UltraSharp U2711 | P2421DC |
| Display | ||
| Screen Size Class | 27" (inches) | 24" (inches) |
| Diagonal Size | 27 in 68.6 cm 685.8 mm 2.25 ft |
23.78 in 60.4 cm 604 mm 1.98 ft |
| Screen Width | 23.49 in 59.7 cm 596.736 mm 1.96 ft |
20.74 in 52.7 cm 526.85 mm 1.73 ft |
| Screen Height | 13.22 in 33.6 cm 335.664 mm 1.1 ft |
11.67 in 29.6 cm 296.35 mm 0.97 ft |
| Display Manufacturer | LG Display | |
| Display Type | H-IPS | IPS |
| Display Bit Depth | 10 bits (8 bits + FRC) | 8 bits (6 bits + FRC) |
| Frame Rate Control | Yes | Yes |
| Max Number of Colors | 1073741824 | 16777216 |
| Bits | 30 | 24 |
| Screen Aspect Ratio | 16:9 | 16:9 |
| Screen Resolution | 2560 x 1440 | 2560 x 1440 |
| Screen Pixel Pitch | 0.233 mm | 0.206 mm |
| Screen Pixel Density | 109 ppi | 123 ppi |
| Screen-to-Body Ratio | 80.31 % | 90.13 % |
| Backlight Source | CCFL | W-LED |
| sRGB | 100 % | 99 % |
| Adobe RGB 1998 | 96 % | |
| NTSC 1953 | 102 % | |
| Screen Brightness | 350 cd/m² | 300 cd/m² |
| Static Screen Contrast | 1000 : 1 | 1000 : 1 |
| Dynamic Screen Contrast | 8000000 : 1 | |
| Screen Horizontal Viewing Angle | 178 ° | 178 ° |
| Screen Vertical Viewing Angle | 178 ° | 178 ° |
| Screen Input Lag | 25 ms | |
| Display Minimum Response Time | 6 ms | 5 ms |
| Display Average Response Time | 14 ms | 8 ms |
| Display Coating | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) |
| 3D | No | |
| Size, weight, color | ||
| Case Depth | 3.66 in 9.3 cm 93 mm 0.31 ft |
1.68 in 4.3 cm 42.7 mm 0.14 ft |
| Case Weight | 7.72 kg 17 lbs |
3.77 kg 8 lbs |
| Case Width with Stand | 25.46 in 64.7 cm 646.71 mm 2.12 ft |
21.17 in 53.8 cm 537.8 mm 1.76 ft |
| Case Height with Stand | 16.84 in 42.8 cm 427.83 mm 1.4 ft |
14.02 in 35.6 cm 356.1 mm 1.17 ft |
| Case Depth with Stand | 7.87 in 20 cm 199.95 mm 0.66 ft |
6.54 in 16.6 cm 166 mm 0.54 ft |
| Case Weight with Stand | 10.46 kg 23 lbs |
|
| Case Color | Black | |
| Hardware | ||
| Built-in Camera | No | No |
| Connectivity | 1 x HDMI 1 x DisplayPort 1.2 1 x D-sub 1 x AV Component In (YPbPr + L/R) 1 x AV Composite In (Video + L/R) 2 x DVI-D Dual Link 4 x USB 2.0 (downstream) 3 x 3.5 mm Audio Out 1 x USB 2.0 (upstream) |
2 x USB 3.0 (downstream) 1 x HDMI 1.4 1 x DisplayPort 1.2 (in) 1 x DisplayPort 1.2 (out) 1 x USB (Type-C; 65W) 2 x USB 2.0 (downstream) |
| Audio | ||
| Features | ||
| Cool Features | DDC/CI HDCP (High-bandwidth Digital Content Protection) |
Low Blue Light Daisy Chain Availability Flicker-free technology |
| Extra Features | Security lock slot | |
| Ergonomics | ||
| Case Width | 25.46 in 64.7 cm 646.71 mm 2.12 ft |
21.17 in 53.8 cm 537.8 mm 1.76 ft |
| Case Height | 15.18 in 38.6 cm 385.67 mm 1.27 ft |
12.68 in 32.2 cm 322.1 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 | Yes | Yes |
| Height Adjustment Range | 90 mm 9 cm 3.5433 in 0.2953 ft |
130 mm 13 cm 5.1181 in 0.4265 ft |
| Landscape or Portrait Pivot Support | No | Yes |
| Left Pivot | 90 ° | |
| Right Pivot | 90 ° | |
| Left or Right Swivel Support | Yes | Yes |
| Left Swivel | 40 ° | 45 ° |
| Right Swivel | 40 ° | 45 ° |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 4 ° | 5 ° |
| Backward Tilt | 21 ° | 21 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 56 Hz - 76 Hz | 60 Hz |
| Horizontal Digital Frequency | 30 kHz - 89 kHz | |
| Screen Interpolation Measurement Unit | NULL | |
| Accessories | ||
| Extras | D-sub cable DisplayPort cable DVI-D cable USB 2.0 upstream cable |
DisplayPort cable USB Type-C cable |
| Certificates and Standards | ||
| Licenses | ENERGY STAR TCO Certified Displays |
ENERGY STAR EPEAT RoHS TCO Certified Display |
| 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 % - 90 % |
| Internal Storage Temperature | -20 °C - 60 °C -4 °F - 140 °F |
-20 °C - 60 °C -4 °F - 140 °F |
| Internal Storage Humidity | 5 % - 90 % | 10 % - 90 % |
| Max Operating Altitude | 3048 | 5000 |
| Max Storage Altitude | 10668 | 12192 |
| Dell UltraSharp U2711 | Dell P2421DC |
