Dell S2421HS Monitor User' s Guide
Summary
This document is the official manual for the Dell S2421HS/S2721HS/S2421HSX/ S2721HSX Monitor User. The manual provides comprehensive guidance on setup, configuration, and operation. Troubleshooting guidance and problem resolution steps are also provided. Technical specifications and compatibility details are included. Safety instructions and regulatory compliance information are covered. Designed for users and IT administrators who need detailed guidance on using and maintaining this monitor.
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Dell S2421HS/S2721HS/S2421HSX/ S2721HSX Monitor User’s Guide
Monitor Model: S2421HS/S2721HS/S2421HSX/S2721HSX Regulatory Model: S2421Ht/S2721Ht
Page Summary Contents For Dell S2421HS Monitor User' s Guide
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Dell S2421HS/S2721HS/S2421HSX/ S2721HSX Monitor User’s Guide Monitor Model: S2421HS/S2721HS/S2421HSX/S2721HSX Regulatory Model: S2421Ht/S2721Ht
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NOTE: A NOTE indicates important information that helps you make better use of your monitor. CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed....
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Contents Safety instructions. About your monitor . Package contents . . . . . . . . . . . . . . . . . . . . . . Product features Identifying parts and controls Front view . . . . . . . . . . . . . . ....
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Tilt, Swivel, and Vertical Extension Rotating the display . . . . . . . . . . . . . . . . . . . . 26 Configuring the display settings on your computer after rotation Connecting your monitor . . . . . ...
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Safety instructions CAUTION: Use of controls, adjustments, or procedures other than those specified in this documentation may result in exposure to shock, electrical hazards, and/or mechanical hazards...
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About your monitor Package contents Your monitor ships with the components shown below. Ensure that you have received all the components and see Contacting Dell if anything is missing. NOTE: Some comp...
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• Quick Start Guide • Safety, Environmental, and Regulatory Information Product features The Dell S2421HS/S2721HS/S2421HSX/S2721HSX monitor has an active matrix, Thin Film Transistor (TFT), Liquid Cry...
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Identifying parts and controls Front view S2421HS/S2721HS S2421HSX/S2721HSX Label Description Use Function buttons For more information, see Operating the Monitor. Power on/off button To turn the moni...
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Back view S2421HS/S2721HS S2421HSX/S2721HSX Label Description Use VESA mounting holes (100 mm Wall mount monitor using VESA-compatible x 100 mm-behind attached wall mount kit (100 mm x 100 mm). VESA c...
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Bottom view S2421HS/S2721HS S2421HSX/S2721HSX Label Description Use Security lock slot Secures monitor with security cable lock (sold separately). Power connector Connect the power cable (shipped with...
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Monitor specifications Model S2421HS/S2421HSX S2721HS/S2721HSX Screen type Active matrix - TFT LCD Panel type In-plane switching technology Aspect ratio 16:9 Viewable image dimensions: Diagonal 60.45 ...
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Height adjustable stand 100 mm 110mm Tilt -5° to 21° Swivel -30° to 30° Pivot -90° to 90° Cable management Yes Dell Display Manager Easy Arrange and other key features (DDM)Compatibility Security Secu...
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VESA, 1600 x 900 60.0 60.0 108.0 CVT, 1920 x 1080 67.5 60.0 148.5 CVT, 1920 x 1080 83.89 75.0 174.5 Electrical specifications Model S2421HS/S2421HSX/S2721HS/S2721HSX Video input signals • Digital vide...
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This product qualifies for ENERGY STAR in the factory default settings, which can be restored by “Factory Reset” function in the OSD menu. Changing the factory default settings or enabling other featu...
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Weight of stand assembly 1.3 kg (2.87 lb) 1.5 kg (3.31 lb) Environmental characteristics Compliant standards • ENERGY STAR certified Monitor • TCO Certified Display • Ro HS Compliant • BFR/PVC Reduce ...
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Pin assignments Display Port Pin 20-pin side of Pin 20-pin side of number the connected signal cable number the connected signal cable ML3 (n) GND GND ML0 (p) ML3 (p) CONFIG1 ML2 (n) CONFIG2 GND AUX C...
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HDMI port Pin number 19-pin side of the connected signal cable TMDS DATA 2+ TMDS DATA 2 SHIELD TMDS DATA 2- TMDS DATA 1+ TMDS DATA 1 SHIELD TMDS DATA 1- TMDS DATA 0+ TMDS DATA 0 SHIELD TMDS DATA 0- TM...
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Plug-and-play You can install the monitor in any Plug-and-Play-compatible system. The monitor automatically provides the computer with its extended display identification data (EDID) using display dat...
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Ergonomics CAUTION: Improper or prolonged usage of keyboard may result in injury. CAUTION: Viewing the monitor screen for extended periods of time may result in eye strain. For comfort and efficiency,...
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• Vary your work activities. Try to organize your work so that you do not have to sit and work for extended periods of time. Try to stand or get up and walk around at regular intervals. • Keep the are...
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Handling and moving your display To ensure that the monitor is handled safely when lifting or moving it, follow the guidelines mentioned below: • Before moving or lifting the monitor, turn off your co...
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• When lifting or moving the monitor, do not turn the monitor upside down while holding the stand base or stand riser. This may result in accidental damage to the monitor or cause personal injury. Mai...
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Setting up the monitor Connecting the stand NOTE: The stand riser and stand base are detached when the monitor is shipped from the factory. NOTE: The following instructions are applicable only for the...
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4. Slide the tabs on the stand riser into the slots on the display back cover and press down the stand assembly to snap it into place. CAUTION: Hold the stand riser firmly when lifting the monitor to ...
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Using the tilt, swivel, and vertical extension Note: The following instructions are applicable only for the stand that was shipped with your monitor. If you are connecting a stand that you purchased f...
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Rotating the display Before you rotate the display, extend the display vertically until the top of the stand riser, and then tilt the display backwards until the maximum to avoid hitting the bottom ed...
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NOTE: If you do not see the rotation option or it is not working correctly, go to https://www.dell.com/support and download the latest driver for your graphics card. Connecting your monitor WARNING: B...
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Organizing your cables After connecting all necessary cables to your monitor and computer, (see Connecting your monitor for cable attachment) organize all cables as shown above. Securing your monitor ...
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Removing the monitor stand CAUTION: To prevent scratches on the LCD screen while removing the stand, ensure that the monitor is placed on a soft, clean surface. NOTE: The following instructions are ap...
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Wall mounting (optional) NOTE: Use M4 x 10 mm screws to secure the wall-mounting kit to the monitor. See the documentation that is shipped with the VESA-compatible wall mounting kit. 1. Place a flat c...
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Operating the monitor Power on the monitor Press the button to turn on the monitor. Using the front panel controls Use the control buttons at the bottom edge of the monitor to adjust the specification...
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The following table describes the front panel buttons: Front-panel button Description Use this button to choose from a list of preset color modes. Shortcut key: Preset Modes Use this button to choose ...
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Using the OSD lock function You can lock the front-panel control buttons to prevent access to the OSD menu and/ or power button. Use the Lock menu to lock the button(s). 1. Select one of the following...
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1. Press and hold Button 4 for four seconds, a menu appears on the screen. Dell 24/27 Monitor Select Option: 2. Select one of the following options: Options Description Select this option to lock OSD ...
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Options Description Use this option to unlock OSD menu function. Menu Buttons unlock Use this option to unlock power button to turn off the monitor. Power Button unlock Use this option to unlock OSD m...
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Use the Back button to go back to the previous menu. Using the On-Screen Display (OSD) menu Accessing the menu system NOTE: The changes you make using the OSD menu are automatically saved when you mov...
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Icon Menu and Description submenus Brightness/ Use this menu to activate Brightness/Contrast Contrast adjustment. Dell 24/27 Monitor Brightness/Contrast Input Source Color 75% Display Personalize 75% ...
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Icon Menu and Description submenus Input Source Use the Input Source menu to select between different video inputs that are be connected to your monitor. Dell 24/27 Monitor Brightness/Contrast DP Inpu...
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Icon Menu and Description submenus Preset When you select Preset Modes, you can choose Standard, Modes Comfort View, Movie, FPS, RTS, RPG, Warm, Cool, or Custom Color from the list. Dell 24/27 Monitor...
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Icon Menu and Description submenus • Custom Color: Allows you to manually adjust the color settings. Press the and buttons to adjust the Red, Green, and Blue values and create your own preset color mo...
Manual Details
| Brand | Dell |
|---|---|
| Pages | 56 |
| File Size | 3.61 MB |
| Published | June 28, 2026 |
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Frequently Asked Questions
How do I troubleshoot a No Input Signal issue?
Check the signal source, ensure the computer is not in power saving mode, and re-plug the signal cable if necessary.
What causes the screen image to be too small centered?
Check the Aspect Ratio setting in the Display menu OSD or reset the monitor to factory settings.
How do I clean the monitor?
Clean the monitor with a soft, dry cloth. Do not use liquid cleaners or aerosol sprays.
Can I use a Kensington lock to secure the monitor?
Yes, you can secure the monitor using the optional Kensington lock on the bottom of the display.