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Dell ST2421L 24-Inch Screen LED-lit Monitor (Discontinued by Manufacturer)

4.5 out of 5 stars 144 customer reviews
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  • Slim and elegant design. With its slim depth and high-gloss front bezel that complements your desktop, the ST2421L is a stylish monitor designed to fit most home environments. Elegant, functional and built for maximum comfort, its tilt-adjustability feature has a panel tilt of 4° forward and 21° backward. You'll also be amazed by the intuitive touch controls and the beautiful lit bottom front bezel when the monitor is on.
  • This highly efficient LCD panel is both mercury and arsenic free. The LED backlight complies with the stringent environmental standard, ENERGY STAR 5.0, to help you lower energy consumption without sacrificing performance.
  • Master performer Transform any room in your house into center stage and enjoy action-packed entertainment in addition to stunning picture quality.Energy efficient - designed with LED backlight to comply with environmental standard, ENERGY STAR 5.0, to help you lower energy consumption. Quality that's measured - with an estimated 7,000,000:1 dynamic contrast ratio, you're able to experience the outstanding contrast and intricate detail delivered through richer and deeper blacks. Brighten up your world - illuminate your desktop experience with a brightness level of 250cd/m2 (typical). Enriched in color -enjoy more crisp and vibrant graphics with a depth of 16.7 million colors. No more glare- cut out unwanted reflections with antiglare coating.
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Product Description

Product Description

Enjoy a perfect picture viewing with this Dell ST2421L Widescreen LED LCD Monitor! This LED monitor offers a big and bright 24-inch screen size with a high definition 1920 x 1080 resolution, 7,000,000:1 dynamic contrast ratio and a 250 cd/m2 brightness. Enjoy crisp and clear images of fast motion video with the speedy 5 ms response time. Get a great view of everything thanks to the 170 horizontal and 160 vertical viewing angles! With HDMI, DVI with HDCP and VGA ports, you can choose your connection! This monitor includes two 3.5 mm audio jacks for connecting external speakers. Watch movies, play games and edit photos in true cinematic picture quality with this 24-inch Dell ST2421L 1080p Widescreen LED LCD Monitor! Order now!

By Law, California shipments of this product are subject to a $8.00 Electronic Waste Recycling Fee

24-inch Dell ST2421L1080p Widescreen LED LCD Monitor VGA cable Power cord

Notes: Model: ST2421L Product Requirements: Available power outlet Available VGA connector DVI and HDMI cable and ports External speakers with 3.5 mm ports Disclosure: LCD displays may have cosmetic imperfections that appear as small bright or dark spots. This is common to all LCD displays used in products by all vendors and is not specific to any vendor or brand. Below are the acceptable amounts of "dot defects" for LCD displays that we sell: 20-Inch to 24-Inch: Total Defects: 8 Bright or Dark Dots (random): 4 Bright or Dark Dots (2 adjacent): 2 Bright or Dark Dots (3 adjacent): 0 Minimum distance between defects: 15 mm (bright to bright dots) Minimum distance between defects: 5 mm (dark to dark dots)

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Product Description

From the Manufacturer

Dell ST2421L 24" Full HD Monitor with LED: Picture perfect.

Dell ST2421L 24" Full HD Monitor with LED: Picture perfect.

Take your multimedia viewing experience to another level with the ST2421L full HD monitor with LED. This 24" widescreen display is an optimum choice for cinematic quality and makes watching movies, playing games and photo editing an amazing experience.

  • Cinematic picture quality with 1920x1080 full HD resolution and fast response time of 5ms
  • Energy-efficient performance and ENERGY STAR 5.0 compliance
  • Easily connects to desktops, laptops and gaming consoles (cables sold separately)
  • Elegantly designed with a slim depth and stylish look


Home is where the action is

Dell ST2421L: Home is where the action is

The new Dell™ ST2421L 24" widescreen full HD monitor with LED delivers true cinematic picture quality with a 16:9 aspect ratio and excellent color contrast (estimated dynamic contrast ratio of 8,000,000:1). Give your movies, videos and games the big-screen attention they deserve with clear 1920 x 1080 full HD resolution and true-to-life picture quality.


Slim and elegant design

Dell ST2421L: Slim and elegant design

With its slim depth and high-gloss front bezel that complements your desktop, the ST2421L is a stylish monitor designed to fit most home environments. Elegant, functional and built for maximum comfort, its tilt-adjustability feature has a panel tilt of 4° forward and 21° backward. You'll also be amazed by the intuitive touch controls and the beautiful lit bottom front bezel when the monitor is on.


Environmental footprint

Dell ST2421L: Environmental footprint

The ST2421L monitor was designed for the environmentally conscious user. This highly efficient LCD panel is both mercury and arsenic free. The LED backlight complies with the stringent environmental standard, ENERGY STAR 5.0, to help you lower energy consumption without sacrificing performance.


Choose your connection

Dell ST2421L: Choose your connection

Enjoy the convenience of digital and analog connectivity options. Seamlessly connect the ST2421L to your desktops, laptops and gaming consoles with HDMI, DVI (HDCP) and VGA analog ports. (Cables sold separately.)


Master performer

Dell ST2421L: Master performer

Transform any room in your house into center stage and enjoy action-packed entertainment in addition to stunning picture quality.

  • Energy efficient — designed with LED backlight to comply with environmental standard, ENERGY STAR 5.0, to help you lower energy consumption
  • Quality that's measured — with an estimated 8,000,000:1 dynamic contrast ratio, you're able to experience the outstanding contrast and intricate detail delivered through richer and deeper blacks.
  • Brighten up your world — illuminate your desktop experience with a brightness level of 250cd/m2 (typical).
  • Enriched in color — enjoy more crisp and vibrant graphics with a depth of 16.7 million colors.
  • No more glare — cut out unwanted reflections with antiglare coating.


Photo Gallery


Dell ST2421L - Gallery Photo 1
Dell ST2421L - Gallery Photo 2
Dell ST2421L - Gallery Photo 3
Dell ST2421L - Gallery Photo 4

Product Information

Technical Details

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Summary : Screen Size, Screen Resolution, Graphics Coprocessor, Graphics Card RAM
Screen Size 24 inches
Max Screen Resolution 1920 x 1080
Brand Name Dell
Item model number ST2421L
Item Weight 13 pounds
Product Dimensions 25.6 x 18.1 x 5.6 inches
Item Dimensions L x W x H 25.55 x 18.11 x 5.59 inches
Color Black
Power Source AC

Additional Information

ASIN B004IJZNHO
Customer Reviews
4.5 out of 5 stars 144 customer reviews

4.5 out of 5 stars
Best Sellers Rank #12,975 in Computers & Accessories (See top 100)
#1,038 in Computers & Accessories > Monitors
Shipping Weight 13.3 pounds
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available January 10, 2011

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

I purchased this monitor at Staples because they were selling it on sale at $189. It was one of the few 24" monitors available, and I was attracted to the size / resolution and image quality right off the bat. Compared to the other monitors on display, it seemed brighter and crisper. I also liked the energy star badge, and DVI, VGA, and HDMI connections. In the future, it could easily support gaming / TV duties. It was also one of the only monitors that had some negative tilt, which I need because of the desk I work on.

Well, this might be a good example of "in store" versus "in home" performance.

Setting up the monitor was a breeze, it looks decent and has a neat LED glow under the logo, which is tasteful. The On Screen Menu is easy to use, and while I usually hate touch buttons, these seem to work very well.

The issue is, once I turned it on and starting staring at it, it just didn't seem like the same awesome display I had seen. I really think that this monitor is tuned to look best in really well lit fluorescent Staples like stores! In a home with less or natural light pouring in, I could see where one reviewer criticized its "washed out" look. After playing around for awhile, I figured out what to do.

Primarily, either through windows, or through your ATI or NVidia control panels, you should re-calibrate the image. The main thing to do is cut the Gamma levels, which are way too high out of the box. I dropped mine through the ATI panel literally as far as it would let me. I would have gone further, but didn't feel like screwing around. Then, I set brightness to about 90, and contrast to around 60-70. If you have no idea what I am talking about, don't buy this monitor for the home.
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As a college student majoring in Graphic design screen real-estate is crucial. I pick up this monitor for $189 at Staples, brought it home and hooked it up to my 17 inch MacBook Pro and its phenomenal. The colors are extremely accurate after calibrating and the backlighting is extremely even. There is no backlight bleeding or nothing. Overall its a great quality screen for the price and the 1920 X 1080 resolution is a very nice benefit. It give me ample room to work in InDesign and Photoshop.

This is a must buy.
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Before upgrading our PC, we did quite a bit of research looking for the right monitor. Dell's monitors were one of our considerations, but we just weren't sure, until we were able to physically compare them side by side with other HDMI monitors. This monitor came home with us because of its crisp and clear images.

Installation was a snap. The HDMI cable is the only we had to hook up. Set up was easy and we were up in running in no time! I have NO complaints about our choice. The screen is adjustable and the picture quality is phenomenal - making it perfect for everyday use as well as gaming and viewing movies.
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Verified Purchase
I used to work for a company that would only buy Dell UltraSharp Flat panels, which in 24" are over $400 each...
so when I became a contractor and had to buy my own equipment, I was willing to compromise on the price. I bought one of these and had a dual monitor setup with a 19" 4:3 ultrasharp (Dell 1907) next to it, for a while.

The colors aren't quite the same. These have a little more yellow saturation by default. But there are a lot of options for adjusting the RGB settings along with the contrast and brightness, so you can tweak it. But I'm a sys-admin, not an artist or web designer, so I leave it stock and it works for me.

The base is fixed. So it doesn't go up or down or rotate 90 degrees, but it does tilt back and forth.

This monitor will accept a dell speaker bar, though you need to use an AC adapter for the speaker bar, as it doesn't have the 5V connector built into the monitor.

All-in-all I was so happy with the price and overall performance that I bought a second one and when I can put my new desk together, if I have enough room, I will buy a 3rd because they are a good quality and you get a nice looking, pretty high resolution screen for the money.

I'm also happy to report that the 2nd monitor has an identical color profile to the first which was purchased 3 months prior. So if you are buying a couple of these for side-by-side use, out of the box they were identical. I've had monitors in the past that are the same make, model and year, but have different color profiles.

bottom-line: If you are a graphic designer or need extremely accurate color pallets, then you will need to spend more money for an ultrasharp-class monitor. But for most people, this will fit the bill and give you good bang for your buck.
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I just got this monitor yesterday on sale for $170 so I can't rate it on reliabilty but so far I love it. It is an excellent monitor for the price. I've watched a couple of movies on it and just played Skyrim and the quality is far superior to my last monitor which was a Hannspree (died after 5 months). Definitely recommended.
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Verified Purchase
I bought this as a second monitor for a home workstation. It was to be side by side with a 3 year old Dell 24" monitor of a diffferent generation. When I put them next to eachother, it was night and day difference. I ended up just replacing my other monitor as this one was brighter, clearer and hands down better. I wasn't expecting much out of a $190 monitor and was surprised. It has a cool LED in the bottom of the monitor so I can see what is on my desk at night. It only comes with a standard VGA cable which is not great, but you can use a DVI cable (not included). So far, I really like this monitor. I gave it a four out of five, due to only including a VGA cable.
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