27MK400H-B
27'' Class Full HD TN Monitor with AMD FreeSync (27'' Diagonal)
  • 27" FHD (1920x1080) TN Display
  • AMD FreeSync™ Technology
  • Dynamic Action Sync
  • Black Stabilizer
  • On Screen Control
  • Smart Energy Saving
27" Class Full HD TN Monitor with AMD FreeSync (27" Diagonal)
$ 179.99
Where to Buy
*FreeSync is only available when it is connected to Display Port or HDMI.

On-Screen Control

On-Screen Control puts a host of essential monitor settings into a handy window for quick, easy access. Volume, brightness, picture mode presets, Screen Split 2.0 and Dual Controller and more can now be adjusted with just a few clicks of the mouse, instead of hard buttons on the monitor.
On-Screen Control1 On-Screen Control2
Watch how the On-Screen Control feature can help configure your display for maximum organization and efficiency.
Software download required to enable OnScreen Control. For download details, visit LGUSA.com/OnScreenControlSupport
Mounting hardware not included.

POWER

  • DC Off
    Under 0.3W
    Type
    Adapter
  • Input
    100~240V, 50/60Hz
    Power Save/Sleep Mode (Max.)
    Under 0.3W
  • Normal On (EPA)
    23W
    Normal On (factory out condition Typ.)
    27W
  • Output
    19V/1.3A

STANDARD

  • TUV-Type
    Yes
    UL(cUL)
    Yes
  • FCC-B, CE
    Yes
    EPA7.0
    Yes
  • EPEAT Bronze
    Yes
    Windows 10
    Yes
  • ErP
    Yes
    VCCI
    Yes

DIMENSIONS/WEIGHTS

  • Shipping Weight
    13.5 lbs
    With Stand (WxHxD)
    24.6" x 18.5" x 8.0"
  • Without Stand (WxHxD)
    24.6" x 14.8" x 1.7"
    Shipping Dimensions (WxHxD)
    27.9" x 18.1" x 6.3"
  • With Stand Weight
    10.1 lbs
    Without Stand Weight
    9.3 lbs

SPECIAL FEATURES

  • Smart Energy Saving
    Yes
    DDC/CI
    Yes
  • HDCP
    YES(Ver 1.4)
    Picture Mode
    Custom, Reader, Color Weakness, Photo, Cinema, Game
  • Plug & Play
    Yes
    Super+ Resolution
    Yes
  • Automatic Standby
    Yes
    Flicker Safe
    Yes
  • Black Stabilizer
    Yes
    Black Level
    Yes
  • DAS Mode
    Yes
    Response Time Control
    Yes
  • OnScreen Control (OSC)
    Yes
    Ratio
    Wide, Original
  • Crosshair
    Yes
    Adaptive Sync
    AMD FreeSync™
  • Gamma Control
    Yes
    DFC
    Yes
  • Color Temperature
    Yes
    R/G/B Color Control
    Yes
  • OSD Lock
    Yes
    Auto Adjustment(D-sub Only)
    Yes

WARRANTY/UPC

  • Limited Warranty
    1 Year Parts & Labor
    UPC
    719192617506

PANEL SPECIFICATIONS

  • Screen Size Class (diagonal)
    27"
    Color Depth
    16.7M Colors
  • Pixel Pitch (mm)
    0.31125 x 0.31125

PICTURE QUALITY

  • Refresh Rate
    Resolution
    1920 x 1080
  • Panel Type
    TN
    Aspect Ratio
    16:9
  • Brightness
    300(Typ), 240(min) cd/m2
    Color Gamut
    72%
  • Response Time
    2ms (Faster)
    Contrast Ratio (DFC)
    1000:1 (Typ.)
  • Viewing Angle
    170/160
    Surface Treatment
    Anti glare ,3H

INPUTS/OUTPUTS

  • Headphone Out
    Yes
    D-Sub
    Yes (1ea)
  • HDMI
    Yes

STAND

  • Detachable Base
    Yes
    Tilt (Angle)
    -5~20 Degree

CABINET/ACCESSORIES

  • Power Cord
    Yes
    HDMI™
    Yes
  • Wall mount size (mm)
    100 x 100
    Manual
    Yes
  • Easy Setup Guide
    Yes

SOFTWARE

  • S/W Install CD
    Yes

SPEAKER

  • Speaker
    No built-in speaker

What people are saying

Rated 4 out of 5 by from Good monitor Bought this monitor a week ago, and have been pleased.
Date published: 2019-11-09
Rated 5 out of 5 by from Great Bright Screen!! I bought this Monitor about a month ago, it has been an amazing experience. Just ready to go as soon as I power it on. The bright vibrant colors, just a magical experience. Excellent for business or just to have a little fun surfing the Web. NO regrets here!!!! Highly recommended!! Thanks LG!!!!
Date published: 2019-11-04
Rated 4 out of 5 by from good value For the price its a good value, would be nice if it had internal speakers but I knew it didn't when I bought it
Date published: 2019-10-18
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ASK & ANSWER

Ask your questions. Share your answers.
Please review the detailed product information and help guides in the
Product Support section for this product prior to posting a question.

Where in the world is the on/off button for this monitor? I'm having issues with the screen coming on whenever the computer is turned on, but I cannot troubleshoot without locating this switch.

Asked by: sc1106
The power joystick is located on the bottom center of the monitor frame. For assistance with your monitor, please give our computer specialists a call at 800-243-0000.
Answered by: ChrisPSM
Date published: 2019-11-13

Is the height of the screen adjustable?

Asked by: lauram121
No, the height of the monitor cannot be adjusted.
Answered by: ChrisPSM
Date published: 2019-10-23

Does the LG 24MK400H-B 24" Class Full HD Monitor have built-in speaker?

Asked by: Rehne
Hello, the 24MK400H-B does not have built-in speakers. ^AC
Answered by: Amber C
Date published: 2018-12-12

Which LG monitors are compatible with a Mac (Mac Mini) computer?

Asked by: ABQGreg
Most, if not all of our monitors are Plug and Play monitors so they all will work with a Mac Mini. It's just a matter of connectivity and depending on what connections you have on your mac mini, you may or may not need adapters to make the necessary connections depending on what connectivity the monitor has...^IFV
Answered by: LGJoel
Date published: 2018-12-10

Can this monitor be use as a computer monitor and cable TV?

Asked by: Dking174
The main difference between a monitor and a TV is that monitors do not have built-in tuners like TVs do and only a few monitors have built-in speakers. To use the LG 27" Class Full HD TN Monitor with AMD FreeSync (27" Diagonal), Model # 27MK400H to watch cable programming, your cable's Set-Top box will need to have an HDMI Out which you can connect to the HDMI In on the monitor and you will need to connect a pair of active or passive computer speakers to the monitor for sound since it doesn't have built-in speakers...^IFV
Answered by: LGJoel
Date published: 2018-10-17

I have two camera systems, so can i input both a HDMI and dsub at the same time to this monitor? Can i split screen the two systems on the one monitor display at the same time?

Asked by: justin113
The HDMI port on the LG 27" Class Full HD TN Monitor with AMD FreeSync (27" Diagonal), Model # 27MK400H is a digital port while the D-Sub port on it is an analog port so the two ports are independent on one another. You cannot view two inputs simultaneously on this monitor, it does not support Picture-by-Picture. You can download the OnScreen software which has Screen Split 2.0 that enables you to resize and display multiple windows at once, with 14 options including four different picture-in-picture (PIP) choices...^IFV
Answered by: LGJoel
Date published: 2018-06-19
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