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ASUS ML228H 21.5" Ultra-Slim LED Backlit LCD Monitor - 2ms, 1920x1080, HDMI - ML228H

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4 out of 5
Total Reviews
Overall Satisfaction
Ease of Use

This ASUS has beautiful color and is bigger in every way than our 19" Dell. The HD is super and colors are true and bright. You won't be disappointed with this.

-A customer quote

Would have been a great deal if it worked out of the box!! DOA!! Blue screen of death!! Looks nice, thin, light. Contacted ASUS tech support and was told to send it back. customer service was expedient in issuing an RMA, but unfortunately all I can get is a credit as they have no more (weeks from now as I have to ship it all the way across the country - one of the negative's of online buying). I'm curious why I still see it being offered on their site if it's out of stock as I was told??? Made in China like everything else!

-Zoo quote

Awesome monitor!

by A customer on 1/7/2011

This ASUS has beautiful color and is bigger in every way than our 19" Dell. The HD is super and colors are true and bright. You won't be disappointed with this.

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Great Monitor!! Great Customer Service!!

by SD on 1/14/2011

I am very impressed with the picture quality and low energy consumption LED technology at this price. The screen looks amazingly superior in finishing as well. The touch buttons are great. On top of that, customer service is A+++. The week after I bought this monitor, the price went down by $15. When I contacted the customer service asking if they had price guarantee, $15 was credited to my account the very next day. Thank you very much!

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Product Overview

Love at First Sight

Featuring ASUS LED Backlight technology, the 21.5-inch ASUS ML228H full HD monitor has a modern ultra slim design with incredible energy efficiency. ASUS LED Backlight technology not only enhances display quality but also provides a thinner and more eco-friendly operation than conventional LCD displays. The LED produces no mercury during manufacturing and emits less CO2 while saving up to 55% more energy1 when in use. Boasting a full 1080p HD resolution and a 10,000,000:1 ASUS Smart Contrast Ratio, high definition media will look amazing with brighter whites and darker blacks. ASUS Trace Free technology reduces the image response time to 2ms to eliminate ghosting for smooth motion playback. With six video selectable presets, ASUS Splendid Video Intelligence technology lets you choose your preferred setting to enhance everything from gaming to movie watching. Its geometrically shaped body and simplistic ring stand base provides sturdy support with easy one-touch rotate and tilt adjustment—giving you form with function. Its piano black, pearl white finish adds sophistication to any home or office.

Feel the Power. Hear the Power.

Key Features

  • 21.5-inch LED-backlit full HD monitor with 16:9 viewing ratio and 1920 x 1080 resolution (Learn more)
  • Ultra-slim 0.65-inch profile leaves a space-saving footprint(Learn more)
  • LED Backlight technology provides superior images, ultra-slim design, and up to 55% energy savings over conventional LCD monitors1 (Learn more)
  • ASUS Smart Contrast Ratio 10,000,000:1 provides brighter whites and darker blacks
  • Ergo-Fit II ring stand for easy one-touch tilt and rotate adjustment (Learn more)
  • ASUS Trace Free technology with quick 2ms response time (gray to gray) eliminates ghosting for smooth motion playback (Learn more)
  • HDMI input for brilliant clarity and wide compatibility with PCs, Blu-ray players, and game consoles (Learn more)
  • Splendid Video Intelligence technology with 6 preset scenario modes and 3 skin-tone presets (Learn more)
  • LED touch-sensitive buttons for easy access to picture adjustments and preset Splendid visual settings (Learn more)

Learn More

Visual Brilliance

Visual Brilliance
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The 21.5-inch ASUS ML228H LED-backlit full HD monitor has a 1920 x 1080 resolution and 16:9 viewing ratio that delivers eye-catching images while providing ample space to easily accommodate multiple windows simultaneously. The ML228H features ASUS Smart Contrast Ratio technology that automatically adjusts the backlight brightness for onscreen images and boosts the contrast ratio to an amazing 10,000,000:1 for more realistic image quality. Plus, its vibrant ASUS Splendid display engine and HDMI input provide lifelike images and sharp detail. From everyday office work to high definition entertainment, view your images and videos the way they are meant to be seen with the Aspect Control function that lets you select your preferred display settings to ensure distortion-free quality.

Vibrant Images with Green Power Efficiency

Vibrant Images with Green Power Efficiency
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The ML228H is Energy Star 5.0 certified making it an easy choice if you want to give the environment a helping hand and save on electrical costs. With the latest LED Backlight technology, the ML228H reduces power consumption by up to 55% over typical LCD monitors.1 The ML228H is also mercury-free, contributing to a greener environment. The ML228H is equipped with an advanced optical film that delivers 250 nits brightness for uncompromised luminance on top of its power savings. The ML228H also meets RoHS environmental standards to assure a sustainable manufacturing processes. Being green is easy with ASUS.

Sleek and User-friendly Design for the Modern Living Space

Sleek and User-friendly Design for the Modern Living Space
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The ultra-slim 0.65-inch thick ASUS ML228H is wrapped in a glossy piano-black frame and pearl-white rear bezel for an elegant fit in any living space. Complemented by LED touch-sensor buttons, every detail is carefully crafted for an upscale design. Amazing from all sides, the ML228H monitor has a razor thin appeal that frees up your desk for an exceptionally streamlined workspace. And with a unique ring stand with Ergo-Fit II technology, the ML228H easily tilts back up to 20 degrees with just the push of a finger. The ML228H is also practical with a built-in Kensington securitylock for added security.

Intelligent Image Enhancement & 2ms Response Time

Intelligent Image Enhancement & 2ms Response Time
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ASUS Splendid Video Intelligence technology optimizes image quality with vivid colors, brightness, contrast, and sharpness corrections for the best visual experience. Splendid offers six video modes designed for scenery, theater, gaming, night view, standard, and sRGB, for optimized images on the Web. It also provides three skin tones, yellowish, natural, and reddish to produce more realistic human skin tones. With an ASUS Trace-Free technology LED-backlit panel, the ML228H provides a 2ms—gray-to-gray—quick response time for smooth and seamless transitions between frames that's perfect for action-packed movies or games.

Relax, ASUS Has You Covered

ASUS 3 Years LCD Monitor Warranty + 3 Years Panel Warranty
The ML228H comes with the ASUS 3 year LCD monitor warranty for its casing and panel. Accessories and cables come with a 1 year warranty. Within 3 years, if more than 3 bright dots and/or 5 dark dots are found, ASUS will replace the panel under the warranty. A bright dot is a white defective dot that is over 1/2 of the whole sub-pixel under BLACK pattern. A dark dot is a black defective dot that is over 1/2 of the whole sub-pixel under any pattern. Please visit for more details on ASUS LCD monitor warranty policy.

What's in the Box

  • ASUS ML228H Monitor
  • HDMI-to-DVI Cable
  • VGA Cable
  • Power Cord
  • Power Adapter
  • Quick Start Guide
  • Warranty Information Card


  • Panel Size: 21.5-inch Widescreen
  • True Resolution: 1920 x 1080
  • Pixel Pitch: 0.248mm
  • Brightness(Max): 250 cd/m2
  • Contrast Ratio (Max): 10,000,000:1 (ASCR)
  • Display Color: 16.7M
  • Viewing Angle (CR>=10): 170(H)/160(V)degrees
  • Response Time: 2ms (gray-to-gray)
  • Video Features:
    SPLENDID Video Intelligence Technology
    Trace Free Technology
    SPLENDID Video Preset Modes (6 modes)
    Skin-Tone Selection (3 modes)
    HDCP support
    Color Temperature Selection (4 modes)
  • Convenient Hotkey:
    SPLENDID Video Preset Mode Selection
    Auto Adjustment
    Brightness Adjustment
    Contrast Adjustment
    Input Selection
  • PC Video Input: HDMI, DVI-D (via HDMI-to-DVI cable) & D-Sub
  • Analog Signal Frequency: 30~83kHz(H)/ 50~75 Hz(V)
  • Digital Signal Frequency: 30~ 83KHz(H)/ 50~75 Hz(V)
  • Power Consumption: Power On <27 W, Power Saving Mode < 1 W, Power Off Mode < 1 W
  • Chassis Colors: Black and Blue
  • Tilt: +20°~ -5°
  • VESA Wall Mounting: Not available
  • Security: Kensington lock
  • Phys. Dimension (W x H x D): 20.37 x 15.85 x 8.27 inches
  • Weight (estimated): 8.38 lbs
  • Regulation Approval: Energy Star v5.0, UL/cUL, CB, CE, FCC, CCC, BSMI, Gost-R, C-Tick, MEPS, VCCI, PSE, J-MOSS, PSB, China Energy Label ,RoHS, WEEE, Windows Vista and Windows 7 WHQL

© 2010 ASUS Computer International. All Rights Reserved. ASUS is a registered trademark of ASUSTeK Computer. All specifications are subject to change without notice. Color and bundled software versions are subject to change without notice. Brand and product names mentioned are trademarks of their respective companies. Product may not be exactly as shown in photos.

1 Compares energy use to a conventional four lamp LCD monitor. Actual savings will vary on model and usage scenario.


Manufacturer Asus
Mfg Part# ML228H
SKU 217148063
UPC 610839322305
UPC 14 00610839322305
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