Dell 34 Plus User Manual

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Dell 34 Plus USB-C Monitor

S3425DW

User's Guide

Model: S3425DW

Regulatory Model: S3425DWc

March 2025

Rev. A00

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Summary of Contents for Dell 34 Plus

Page 1 Dell 34 Plus USB-C Monitor S3425DW User’s Guide Model: S3425DW Regulatory Model: S3425DWc March 2025 Rev. A00...
Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2025 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies, Dell, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.
Page 3 *Dell Display and Peripheral Manager (DDPM) for Windows ....... . .
Page 4 Contacting Dell ........
Page 5 Safety instructions Use the following safety guidelines to protect your monitor from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that you have read the safety information that is shipped with your monitor.
Page 6 About your monitor Package contents The following table provides the list of components that are shipped with your monitor. If any component is missing, contact Dell. For Contacting Dell more information, see NOTE: Some items may be optional and may not ship with your monitor. Some features may not be available in certain countries.
Page 7 ≤50% to ≤35%. This monitor is certified with TÜV Rheinland Eye Comfort 3.0 with a 4-star rating. It incorporates key technologies that also deliver a flicker-free screen, up to 120 Hz refresh rate, a color gamut of minimum 95% sRGB. Dell ComfortView Plus feature is enabled by default on your monitor.
Page 8 About TÜV Rheinland Eye Comfort 3.0 TÜV Rheinland Eye Comfort 3.0 certification program presents a consumer-friendly star rating scheme to the display industry thereby promoting eye wellness from safety to eye care. Compared to existing certifications, the 5-star-rating program adds rigorous testing requirements on overall eye care attributes such as low blue-light, flicker-free, refresh rate, color gamut, color accuracy, and ambient light sensor performance.
Page 9 Eye Comfort 3.0 Requirements and Star Rating Scheme for Monitors Table 3 . Eye Comfort 3.0 Requirements and Star Rating Scheme for Monitors Star Rating Scheme Category Test item 3-star 4-star 5-star TÜV Hardware LBL TÜV Hardware LBL TÜV Hardware LBL Low Blue Light Category III (≤50%) or Category II (≤35%) or...
Page 10 *The operating system compatibility on Dell branded monitors may vary based on factors such as: • Specific release date(s) when operating system versions, patches, or updates are available. Specific release date(s) when Dell branded monitor firmware, software application, or driver updates are available on the Dell • support website.
Page 11 Lists the regulatory approvals. Regulatory label (including MyDell QR See this label if you need to contact Dell for technical support. The code, serial number, and Service Tag label) Service Tag is a unique alphanumeric identifier that enables Dell service technicians to identify the hardware components in your monitor and access warranty information.
Page 12 Bottom view Bottom view of the monitor Figure 3 . Components and descriptions. Table 6 . Label Description Connect your USB device or charge your device. USB 5Gbps Type-A downstream port NOTE: To use these ports, you must connect the USB-C cable (shipped with your monitor) to the USB-C upstream port on the monitor and to your computer.
Page 13 Monitor specifications Monitor specifications. Table 7 . Description Value Screen type Active matrix - TFT LCD Panel technology Vertical Alignment (VA) Technology 21:9 Aspect ratio Viewable image dimensions Diagonal 864.3 mm (34.0 in.) Active area Horizontal 797.22 mm (31.39 in.) Vertical 333.72 mm (13.14 in.) Area...
Page 14 *Dell Display and Peripheral Manager (DDPM) for Windows DDPM is a software application that helps you set up and configure the Dell monitors and peripherals. Some of its features include: Adjusting the monitor On-Screen Display (OSD) settings such as brightness, contrast, and resolution without needing to use the joystick on the monitor.
Page 15 Supported video modes Supported video modes Table 9 . Description Value Video display capabilities (HDMI) 480p, 576p, 720p, 1080i, 1080p, 1440p, 2160p Video display capabilities (USB-C) 480p, 576p, 720p, 1080p, 1440p Preset display modes HDMI preset display modes Table 10 . Horizontal Frequency Vertical Frequency Sync Polarity...
Page 16 USB-C preset display modes Table 11 . Horizontal Frequency Vertical Frequency Sync Polarity Display Mode Pixel Clock (MHz) (kHz) (Hz) (Horizontal/Vertical) IBM 720 x 400 31.47 70.08 28.32 VESA 640 x 480 31.47 59.94 25.18 VESA 640 x 480 37.50 75.00 31.50 VESA 800 x 600...
Page 17 Electrical specifications Electrical specifications Table 12 . Description Value Video input signals HDMI 2.1/USB-C (DP 1.4 Alt Mode), 600 mV for each differential line, 100 ohm input impedance per differential pair. AC input voltage/frequency/ 100 VAC-240 VAC/50 Hz or 60 Hz ± 3 Hz/2 A (typical) current Inrush current 120 V: 30 A (maximum) at 0...
Page 18 Physical characteristics Physical characteristics Table 13 . Description Value Universal Series Bus: Type-C, 24 pins Signal cable type Digital: HDMI port, 19 pins (cable not included) Dimensions (with stand) Height (extended) 517.18 mm (20.36 in.) Height (compressed) 411.53 mm (16.20 in.) 807.32 mm (31.78 in.) Width 221.85 mm (8.73 in.)
Page 19 Environmental characteristics Environmental characteristics Table 14 . Description Value Compliant Standards ENERGY STAR certified monitor • • RoHS-compliant BFR/PVC reduce monitor (Circuit boards are made from BFR/PVC-free laminates). • • Arsenic-free glass and Mercury-free for the panel only Temperature Operating C to 40 C (32 F to 104...
Page 20 Pin assignments HDMI 19-pin connector HDMI 19-pin connector Figure 4 . Pin assignments - HDMI 1/HDMI 2 Table 15 . 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+...
Page 21 USB-C upstream and downstream connector USB-C connector Figure 5 . Pin assignments - USB-C connector Table 16 . Pin number Signal name Pin number Signal name TX1+ TX2+ TX1- TX2- VBUS VBUS SBU1 SBU2 VBUS VBUS RX2- RX1- RX2+ RX1+ About your monitor...
Page 22 USB Type-A downstream connector USB Type-A downstream connector Figure 6 . Pin assignments - USB Type-A downstream connector Table 17 . Pin number 9-pin side of the connector SSRX- SSRX+ SSTX- SSTX+ About your monitor...
Page 23 Universal Serial Bus (USB) interface This section provides information about the USB ports that are available on the monitor. Rear • One USB-C 5Gbps upstream USB-C 5Gbps upstream Table 18 . USB-C Description Video DisplayPort 1.4* Data 5Gbps Power Delivery (PD) Up to 65 W *HBR3 is supported.
Page 24 Video bandwidth Video bandwidth Table 22 . Host Video cable Color depth USB-C prioritization Max resolution and refresh rate DSC ON 10 Bit High Data Speed 3440 x 1440 at 120 Hz DSC ON 10 Bit High Resolution 3440 x 1440 at 120 Hz USB-C (DP 1.4 Alt Mode) USB-C cable DSC OFF 10 Bit High Data Speed...
Page 25 During the LCD Monitor manufacturing process, it is not uncommon for one or more pixels to become fixed in an unchanging state which are hard to see and do not affect the display quality or usability. For more information on Dell Monitor Quality and Pixel Policy, see www.dell.com/pixelguidelines.
Page 26 Ergonomics Figure 7 . About your monitor...
Page 27 Handling and moving your display To ensure that the monitor is handled safely when lifting or moving it, follow these guidelines: • Before moving or lifting the monitor, turn off your computer and the monitor. • Disconnect all cables from the monitor. Place the monitor in the original box with the original packing materials.
Page 28 For best practices, follow the instructions in the list below when unpacking, cleaning, or handling your monitor: Use a clean cloth that is slightly dampened with water to clean the stand assembly, the screen, and the chassis of your Dell •...
Page 29 Setting up the monitor Attaching the stand NOTE: The stand is not installed at the factory when shipped. NOTE: The following instructions are applicable only for the stand that was shipped with your monitor. If you are attaching a stand that you purchased from any other source, follow the setup instructions that were included with the stand. To attach the monitor stand: Remove the stand riser and stand base from the packaging cushion.
Page 30 Attach the stand assembly to the display. • Fit the two tabs on the upper part of the stand to the groove on the back of the display. • Press the stand down till it snaps into place. Attach the stand assembly to the display Figure 14 .
Page 31 Using the quick access ports When you want to use the monitor’s built-in quick access ports, press on the quick access ports module and then release. The quick access ports module slides down. Using the quick access ports Figure 17 . Setting up the monitor...
Page 32 Before you begin any of the procedures in this section, follow the NOTE: Dell monitors are designed to work optimally with the Dell-supplied cables inside the box. Dell does not guarantee the video quality and performance if non-Dell cables are used.
Page 33 Routing the cables to side I/O (optional) Routing the cables to side I/O Figure 21 . To route the cables to the side I/O: Insert the HDMI cable (purchased separately) and USB cable (purchased separately) into the side I/O connector. Insert and organize the cables under the restraint lever as shown above.
Page 34 Securing your monitor using Kensington lock (optional) Security-lock slot The security-lock slot is located at the bottom of the monitor (see ). Secure your monitor to a table using the Kensington security lock. For more information on using the Kensington lock (sold separately), see the documentation that is shipped with the lock. Using Kensington lock Figure 24 .
Page 35 Wall mounting (optional) Wall mounting Figure 26 . NOTE: Use M4 x 10 mm screws to connect the monitor to the wall mounting kit. See the documentation that is shipped with the VESA-compatible wall mounting kit. Place the monitor panel on a soft cloth or cushion on a stable flat table. Removing the monitor stand Remove the stand (see Using a Phillips crosshead screwdriver, remove the four screws securing the plastic cover.
Page 36 Using the tilt, slant and height adjustment NOTE: The following instructions are applicable only for attaching the stand that was shipped with your monitor. If you are attaching a stand that you purchased from any other source, follow the setup instructions that were included with the stand. Tilt and slant adjustment With the stand attached to the monitor, you can tilt and slant the monitor for the most comfortable viewing angle.
Page 37 Operating the monitor CAUTION: Before using the monitor, it is recommended to fasten the stand riser to a wall using cable tie or a cord that can support the weight of the monitor in order to prevent the monitor from falling. Fasten the monitor Figure 29 .
Page 38 Using the joystick control Use the joystick control on the rear of the monitor to make On-Screen Display (OSD) adjustments. Using the joystick control Figure 31 . Press the joystick to launch the Menu Launcher. Adjust the joystick in any direction-up, down, left, or right-to navigate through the options. Press the joystick again to confirm the selection.
Page 39 Using the On-Screen Display (OSD) menu Accessing the Menu Launcher When you press the joystick, the Menu Launcher appears to let you access the OSD main menu and shortcut functions. To select a function, move the joystick. Accessing the Menu Launcher Figure 32 .
Page 40 Using the navigation keys When the OSD main menu is active, move the joystick to configure the settings, following the navigation keys displayed below the OSD. Navigation keys Figure 33 . Control buttons and descriptions. Table 26 . Control Buttons Description Use the Up navigation key to adjust (increase ranges) items in the OSD menu.
Page 41 Direct Key functions Direct Key Figure 34 . Control buttons and descriptions. Table 27 . Control Buttons Description Allows you to choose a feature from Off, Menu Launcher, Preset Modes, Brightness, Contrast, Input Source, Aspect Ratio, Volume, Audio Profiles, Smart HDR, Display Info, PIP/PBP Mode or Video Swap Direct Key 1 and set it as a Direct Key 1.
Page 42 Accessing the menu system NOTE: After you change the settings, press the joystick to save the changes before exiting or proceeding to another menu. Select the icon to launch the OSD and display the main menu. 2 . Press the joystick in navigation key to activate the highlighted option.
Page 43 OSD menu Table 28 . Icon Menu and submenu Description Brightness/Contrast Adjusts the brightness and the contrast of the display. Brightness Brightness adjusts the luminance of the backlight. Move the joystick up or down to increase or decrease the brightness level (min 0 ~ max 100).
Page 44 Icon Menu and submenu Description Input Source Select between the different video signals that may be connected to your monitor. Select USB-C 65W when you are using the USB-C upstream port. Press the joystick to USB-C confirm the selection. HDMI 1 Select HDMI 1 when you are using the HDMI port.
Page 45 Icon Menu and submenu Description Color Adjusts the color setting mode. Preset Modes Allows you to choose from the list of preset color modes. Press the joystick to confirm the selection. Standard: This is the default setting. Using a low blue light panel, this monitor •...
Page 46 Icon Menu and submenu Description Display Use Display to adjust the image. Aspect Ratio Adjusts the image ratio to 21:9, Auto Resize, 4:3 or 1:1. Sharpness Adjusts the picture sharpness of the display. Move the joystick to adjust the sharpness level from 0 to 100.
Page 47 Icon Menu and submenu Description PIP/PBP Allows you to watch more images at the same time. PIP/PBP Mode Adjusts the PIP/PBP Mode. You can adjust this feature by selecting Off, 50%-50%, 75%- 25%, 25%-75%, 67%-33%, 33%-67%, PIP (Small), PIP (Large). NOTE: FreeSync is not supported when PIP/PBP is enabled.
Page 48 Icon Menu and submenu Description Audio Adjusts the audio settings. Volume Use the buttons to adjust the volume. Minimum is 0 (-). Maximum is 100 (+). Speaker Allows you to turn on or off the speaker. Audio Profiles Expand to show the various audio profiles. Standard: Default audio setting.
Page 49 Icon Menu and submenu Description Menu Adjusts the settings of the OSD, such as the languages of the OSD, the amount of time the menu remains on screen, and so on. Language Sets the OSD display to one of the eight languages (English, Spanish, French, German, Brazilian Portuguese, Russian, Simplified Chinese, or Japanese).
Page 50 Icon Menu and submenu Description Personalize Select this option to adjust the settings of the personalization. Shortcut Keys Guide Select this option for entering Shortcut Keys Guide. Shortcut Key 1 Select a function from Preset Modes, Brightness/Contrast, Input Source, Aspect Ratio, Volume, Audio Profiles, Smart HDR, Display Info, PIP/PBP Mode or Video Swap and set Shortcut Key 2 it as a shortcut key in the menu launcher.
Page 51 Icon Menu and submenu Description Others Adjusts the OSD settings, such as DDC/CI, LCD Conditioning, Self-Diagnostic, Reset Others, and Factory Reset. DDC/CI DDC/CI (Display Data Channel/Command Interface) allows you to adjust the monitor settings using software on your computer. Enable this function for the best user experience and optimum performance of your monitor.
Page 52 Icon Menu and submenu Description LCD Conditioning Helps reduce minor cases of image retention. Depending on the degree of image retention, the program may take some time to run. By default, the setting is Off. You can enable this function by selecting On. Self-Diagnostic Built-in diagnostics Select this function to run the built-in diagnostics, see...
Page 53 The image shown is for the purpose of illustration only. The information may vary depending on the model and current settings. Dell Monitor Support To access the general monitor support materials for your monitor, use your smartphone to scan the QR code.
Page 54 OSD messages Initial Setup When you turn on the monitor, the following message appears: The message of pressing the joystick Figure 35 . If you press the joystick, the following message appears: The message of selecting language Figure 36 . Operating the monitor...
Page 55 If you select your language, the following message appears: The message of selecting the USB charging function Figure 37 . If you select this function or message timeout, the following message appears: The message of selecting the USB charging function or message timeout Figure 38 .
Page 56 OSD warning message When the monitor does not support a particular resolution mode, the following message appears: Warning message of not supported resolution mode Figure 39 . Monitor specifications This means that the monitor cannot synchronize with the signal that it is receiving from the computer. See for the Horizontal and Vertical frequency ranges addressable by this monitor.
Page 57 You will see the following message before the DDC/CI function is disabled: Warning message of the DDC/CI Figure 42 . When the monitor goes into Standby mode, the following message appears: The message of the Standby Mode Figure 43 . Activate the computer and wake up the monitor to gain access to the OSD.
Page 58 The message of No USB-C cable Figure 47 . NOTE: The message may slightly vary according to the selected input signal. Troubleshooting for more information. Operating the monitor...
Page 59 Locking the control buttons You can lock the monitor control buttons to prevent access to the OSD menu and/or power button. Move and hold the joystick up, down, left, or right for about four seconds until a pop-up menu appears. The message of locking the control buttons Figure 48 .
Page 60 Dell Support If you are using a non-Dell computer (laptop or desktop): Go to the support site for your non-Dell computer and download the latest graphic card drivers. • Go to the graphics card’s website and download the latest graphic card drivers.
Page 61 Troubleshooting Safety instructions WARNING: Before you begin any of the procedures in this section, follow the Self-Test Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps: Turn off both your computer and the monitor.
Page 62 Built-in diagnostics Your monitor includes a built-in diagnostic tool to help you identify whether the screen abnormality is due to an issue with the monitor itself or with your computer and video card. To run the built-in diagnostics: Ensure that the screen is clean (no dust particles on the surface of the screen). Press the joystick button to launch the OSD Main Menu.
Page 63 Cycle power On-Off. Pixel that is permanently off is a natural defect that can occur in LCD technology. For more information about Dell Monitor Quality and Pixel Policy, see www.dell.com/pixelguidelines. Stuck-on pixels LCD screen has bright spots Cycle power On-Off.
Page 64 What you experience Possible solutions Safety-related issues Visible signs of smoke or Do not perform any troubleshooting steps. sparks Contacting Dell immediately. Intermittent problems Monitor malfunctions on Ensure that the video cable connecting the monitor to the computer is and off connected properly and is secure.
Page 65 Universal Serial Bus (USB) specific problems Common symptoms What you experience Possible solutions USB interface is not USB peripherals are not • Check that your monitor is turned on. working working • Reconnect the upstream cable to your computer. • Reconnect the USB peripherals (downstream port). •...
Page 66 Regulatory information FCC notices (U.S. Only) and other regulatory information For FCC notices and other regulatory information, see the regulatory compliance website at www.dell.com/regulatory_compliance. EU product database for energy label and product information sheet S3425DW: https://eprel.ec.europa.eu/qr/2198463 Regulatory information...
Page 67 Contacting Dell To contact Dell for sales, technical support, or customer service issues, see www.dell.com/contactdell. NOTE: Availability varies by country, region, or product, and some services may not be available in your country. NOTE: If you do not have an active Internet connection, you can find contact information about your purchase invoice, packing slip, bill, or Dell product catalog.

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