ACER
ACER UM.WR1AA.B01 21.5IN IPS LED 1MS VGA+HDMI+AUDIO OUT
Mfg Part Number: UM.WR1AA.B01 , Item #: 4401006
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Price: $141.90
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Last Updated: Jan 22, 2026
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Slim and trim
R1 displays have an ultra-thin enclosure with most of the display being only 6.6 mm thick, thinner than many smartphones. In addition, the "ZeroFrame" design maximises the view and minimises visual clutter with a bezel so thin that you barely notice it.
A comfortable viewOur R1 displays are designed to help preserve eye health. Flicker-less design reduces eye strain from screen flicker. A Blue Light Filter reduces the negative effects of excess blue spectrum exposure, and our ComfyView reduces screen reflection.
Main Specification
| General Information | |
| Manufacturer | Acer, Inc |
| Manufacturer Part Number | UM.WR1AA.B01 |
| Manufacturer Website Address | http://us.acer.com |
| Brand Name | Acer |
| Product Series | R1 |
| Product Model | R221Q B |
| Product Name | R221Q B Widescreen LCD Monitor |
| Product Type | LCD Monitor |
| Technical Information | |
| Number of Screens | 1 |
| Viewable Screen Size | 21.5" |
| Screen Mode | Full HD |
| Panel Technology | In-plane Switching (IPS) Technology |
| Response Time | 1 ms |
| Response Time Details | 1 ms VRB |
| Aspect Ratio | 16:9 |
| Pixel Pitch | 0.24800 mm x 0.24800 mm |
| Horizontal Viewing Angle | 178° |
| Vertical Viewing Angle | 178° |
| Adjustable Display Pivot | No |
| Backlight Technology | LED |
| Maximum Adjustable Height | No |
| Tilt Angle | -5° to 15° |
| Horizontal Frequency | 54 kHz to 85.50 kHz |
| Vertical Frequency | 48 Hz to 76 Hz |
| Video | |
| Maximum Resolution | 1920 x 1080 |
| Standard Refresh Rate | 75 Hz |
| Color Supported | 16.7 Million Colors |
| Native Contrast Ratio | 1,000:1 |
| Dynamic Contrast Ratio | 100,000,000:1 |
| Brightness | 250 Nit |
| Tearing Prevention Technology | FreeSync |
| Color Gamut | 72% NTSC |
| Interfaces/Ports | |
| HDMI | Yes |
| VGA | Yes |
| Headphone | Yes |
| Number of HDMI Inputs | 1 |
| Power Description | |
| Standby Power Consumption | 450 mW |
| Off-Mode Power Consumption | 400 mW |
| Operating Power Consumption (Energy Star) | 22 W |
| Standby Power Consumption (Energy Star) | 450 mW |
| Off-Mode Power Consumption (Energy Star) | 400 mW |
| Maximum Power Consumption (Energy Star) | 24 W |
| Physical Characteristics | |
| Color Family | Black |
| Product Color | Black |
| Height | 11.9" |
| Width | 19.6" |
| Depth | 1.4" |
| Height with Stand | 15.12" |
| Width with Stand | 19.61" |
| Depth with Stand | 8.82" |
| Weight (Approximate) | 4.41 lb |
| Weight with Stand (Approximate) | 5.07 lb |
| Miscellaneous | |
| Package Contents | |
| Environmentally Friendly | Yes |
| Warranty | |
| Limited Warranty | 3 Year |
Connector Adapters
Connector Cables
Screens & Filters
WARNING:: The plastic used in cable products can expose you to lead and lead components,
chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
