LG 24inch Full HD TN Monitor with AMD Freesync  - Black - 24MK400H-B
LG 24inch Full HD TN Monitor with AMD Freesync - Black - 24MK400H-B


LG 24inch Full HD TN Monitor with AMD Freesync - Black - 24MK400H-B

Item # L0042379

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Frequently Bought Together

  • AMD FreeSync Technology
  • Game Mode
  • OnScreen Control
  • HDMI x 1, VGA x 1, Display Port x 1
  • Brand Description


  • Brightness

    Typical: 300 cd/m²; Minimum: 240 cd/m²

  • Color Support

    16.7M Colours

  • Colour


  • Connector(s)

    1 x HDMI
    1 x VGA
    1 x Headphone Out

  • Diagonal Size

    24 inches

  • Dimensions (WxDxH)

    With Stand: 24.6" x 8.03" x 18.5"
    Without Stand: 24.6" x 1.7" x 14.8"

  • Display


  • Dot Pitch / Pixel Pitch

    0.31125 x 0.31125

  • Image Aspect Ratio


  • Image Contrast Ratio

    Typical: 1000:1

  • Manufacturer Warranty

    One year parts and labour

  • Model


  • Monitor

    24 Inch

  • Resolution

    1920 x 1080

  • Weight

    With Stand: 4.58 kg
    Without Stand: 4.22 kg

LG 24inch Full HD TN Monitor with AMD Freesync - Black - 24MK400H-B is rated 4.2 out of 5 by 11.
Rated 5 out of 5 by from perfect fit for my office security cameras Awesome display features and crystal clear quality
Date published: 2019-07-18
Rated 4 out of 5 by from Great value. Was looking to buy a used monitor but when I saw the price on this I figured I'd take a chance on buying it. Performs well. Easy to install though the HDMI cable that came with the unit was defective. Only complaint is the on/off switch is used to a number of things that would best be on a menu. Despite that the monitor is a great value and I would buy it again.
Date published: 2019-07-05
Rated 4 out of 5 by from Good monitor for the price Good monitor for the price at $102 But it dosnt have have USB port nor built in speaker [This review was collected as part of a promotion.]
Date published: 2019-05-16
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what's the refresh rate

Asked by: eeee12
Hi there, thanks for reaching out! As indicated in CS 39's response, this TV has a refresh rate of 60HZ at 1080p. For more information on this product, please feel free to download the owner's manual from our website: https://www.lg.com/ca_en/support/support-product/lg-24MK400H-B#manuals. Best regards.
Answered by: LG Electronics Canada
Date published: 2019-01-03

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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