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27" Class Full HD IPS LED Monitor with Radeon FreeSync™ (27" Diagonal)
Enjoy the incredible detail and clarity of Full HD 1080p resolution and with IPS (In-Plane Switching) technology, response times are shortened, color reproduction is improved, allowing users to view the screen at virtually any angle.
Radeon FreeSync™* reduces the tearing and stuttering that occur between a graphic card's frame rate and a monitor's refresh rate enabling smoother motion and less stuttering in fast, demanding games.
*FreeSync is only available when it is connected to Display Port.
Dynamic Action Sync
Minimize input lag with Dynamic Action Sync so you can catch every single moment in real-time.
Keep visibility even in dark scenes. LG's Black Stabilizer senses dark scenes and helps make it brighter so that you can find the enemies hiding and waiting to attack your player in the dark.
On-Screen Control puts a host of monitor settings into a handy window for quick, easy access. Volume, brightness, picture mode presets, Screen Split 2.0 and Dual Controller can be adjusted with just a few clicks of the mouse.
Custom, Reader, Color Weakness, Photo, Cinema, Game
Plug & Play
Response Time Control
OnScreen Control (OSC)
R/G/B Color Control
Auto Adjustment(D-sub Only)
1 Year Parts & Labor
Screen Size Class (diagonal)
Pixel Pitch (mm)
0.3114 x 0.3114 mm
1920 x 1080
250 cd/m²(Typ.) 200 cd/m² (Min.)
NTSC 72% (CIE1931)
Contrast Ratio (DFC)
Anti Glare, 3H
Yes x 1
Wall mount size (mm)
100 x 100 mm
Easy Setup Guide
S/W Install CD
What people are saying
Rated 1 out of
Didn't meet my needsI wanted a big ext. monitor for my Mac set-up. However, when I chose 1280x720 resolution, the font got fuzzy. Sadly, I had return it. I'm sure it's just fine for other needs.
Date published: 2022-05-10
Rated 2 out of
When it worked it looked great!When I ordered this 15 months ago, it looked like a clear winner in the cost/benefit category. Nice step up in size, and it was the cheapest around. Installed just fine and worked perfectly for around a year. Then little lines began appearing, but only over the horizontal bar at the bottom of the screen. I wrote those off to some mysterious glitch, since everything worked and they'd fade away (or I didn't notice them). Until a couple of days ago... Now the screen has developed lines over the entire screen and it stops refreshing (doesn't reflect any changes from the computer) almost immediately. My old screen works perfectly with the same cables...
Date published: 2022-03-25
Rated 1 out of
LG 27 inch monitor from
Broke within yearI bought this a little over a year ago and it broke just after the warranty expired
Refer to the detailed Warranty information delivered in your product packaging.
If you need Repair Service, submit an online
Request a Repair or
Please have the Serial number of your product and proof of purchase ready.
Out-of-warranty service fees may apply for diagnosis, parts, and labor.
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.
Is using fast or faster response time safe?
Asked by: Faizi201
Using the Response Time Control setting in the LG 27'' Class Full HD IPS LED Monitor with Radeon FreeSync™ (27'' Diagonal), Model # 27MK430H-B sets a response time for displayed pictures based on the speed of the screen. For a normal environment, it is recommended that you use Fast.
For a fast-moving picture, it is recommended that you use Faster. Once Faster Mode is selected, Motion Blur may occur depending on the content...^Ivan
Answered by: Ivanf
Date published: 2022-02-01
Is the monitor able to be mounted?
Asked by: Autilio
Yes, Wall mount size is 100 x 100 mm. The Wall mounting interface is sold separately. Use only screws and wall mounts that meet the VESA standard. ^Daphane
Answered by: LG Electronics
Date published: 2021-12-22
i received my LG27MK430-H-B, and it is working, but i cannot find how to make the adjustments, i do not have the icon that is shown in the video at L.COM, is this on the disc, do i need to set that up? it was not explained in the set up guide thanks
Asked by: Psalm
The LG 27'' Class Full HD IPS LED Monitor with Radeon FreeSync™ (27'' Diagonal), Model # 27MK430H-B has a joystick button located in the middle of the panel where the LG logo is under the panel that lets you easily control the functions of the monitor. Please review page 6 in your owner's manual, "How to use the Joystick Button' for instructions on how to use it...^IFV
1Free shipping not available for parts and accessories. Free shipping to qualifying US destinations in the contiguous United States; not available for P.O. Boxes, addresses outside the contiguous 48 states, international addresses, Army Post Office (APO), Diplomatic Post Office (DPO) and Fleet Post Office (FPO).
*Parts and accessories shipping cost may vary.
^Purchase one (1) qualifying LG UltraGear 850 series gaming monitor and receive a $45 gift card of your choice to either Xbox or Twitch. Valid for purchases made on LG.com from 8/30/2021 to 9/30/2021. Customers will be required to visit www.lg-promos.com/computeroffer to redeem their offer within 30 days of the purchase date . If any of the qualifying items are removed from the cart or part of the order is cancelled or returned, the promotional savings will be void. Prices and offers are non-redeemable for cash, non-transferable and may not be combined with other offers/discounts. Availability, prices and terms of offer are subject to change without notice. Qualifying models: 27GP850-B.AUS, 32GP850-B.AUS
Prices, promotions and availability may vary by model, store, and online. Prices subject to change without notice. Quantities are limited. Check with your local retailers for their final price and availability.
Not only does LG have the #1 UltraWide*, UHD** and gaming monitors*** in the country, but with a wide range of options, we make it easy to find the right LG monitor for all that you do. Just a few of the options available include:
• Curved UltraWide Monitors: Whether you want one large panoramic view or need a 4-screen split so you can see more of your work at once, our curved UltraWide monitors make it all possible. Their 21:9 aspect ratio and IPS technology ensure you'll get true color accuracy at any angle – making them among the best computer monitors for designers, photographers, gamers and other professionals who need more room for big ideas.
• UltraFine™ Monitors: Our UltraFine collection includes brilliant 4K monitors, as well as breathtaking 5K monitors in a variety of sizes. But no matter which solution fits best, you'll still get a stunning IPS display that delivers vibrant colors, incredible clarity and fine detail. • UltraGear™ Gaming Monitors: Get widescreen monitors built for gaming. With the latest hardware specs, game-focused features, like NVIDIA G-SYNC™ compatibility, and AMD Radeon™ FreeSync™ 2 technology, a vibrant IPS display, 1ms GTG response times and pro-level customizations, you cannot just get in the game – you can dominate it.
Whether you're looking for curved monitors for work, a 4K or 5K solution for your home office, or need a new gaming monitor to elevate your play, we've got you covered. Check out all the latest monitors from LG – including our 4K, IPS and gaming monitors, as well as our LED monitors, and our UltraWide, UltraFine collections – and find the right monitor for your space and your life.
*Prices, promotions, and availability may vary by model, store, and online. Prices are subject to change without notice. Quantities are limited.
*Additional 5% or 10% back will be in the form of a Visa prepaid card issued by The Bancorp Bank®, N.A., Member FDIC. Terms and expiration apply-see rebate form at www.LG-Promos.com/ABS622. for details. Subject to availability. 5% will apply to the total invoice price of 2 eligible LG Kitchen plus select Floor Care and Air Care products before taxes (excludes Countertop Microwave Ovens and the Trim Kit, Laundry, LG Styler,® and Top Freezer, Bottom Freezer and Single Door Refrigerators). 10% will apply to the total invoice price of 3 or more eligible LG Kitchen and Laundry products plus select Floor Care, Air Care, LG Styler®, Countertop Microwave Ovens, Trim Kit (sold separately), Wall Oven and Cooktop products before taxes. Qualifying categories include: Refrigerator, Range, Wall Oven, Over-the-Range, Microwave Oven (OTR), Countertop Microwave Oven, Cooktop, Hood Vent, Dishwasher, Washer, Dryer, LG SideKick,™ Floor Care, Air Care and LG Styler.® WashTower™ products (Washer + Dryer) will count as two (2) qualifying units towards a bundle. Select Countertop Microwave Ovens purchased together with a Trim Kit (sold separately) will count as one (1) qualifying unit towards a bundle.Product must be purchased in a single transaction between June 22, 2022 and July 13, 2022. Online submissions made atwww.LG-Promos.com/ABS622 must be received by 11:59 PM Pacific Time on October 13, 2022.Maximum number of products of the same category allowed to qualify for rebate is one (1).
*Purchase a bundle of four (4) select LG Kitchen Appliance products including eligible LG Refrigerator, Range, Over-the-Range Microwave Oven and Dishwasher models and receive instant additional savings of 10% applied to the pre-tax purchase price of the eligible products plus up to an additional $982 savings. Products must be purchased in the same online order June 22 - July 13, 2022 on LG.com to receive the instant additional savings. Maximum number of products of the same category allowed to qualify for the package discount is one (1). Savings will be reflected in the cart when all offer requirements are met. If any of the qualifying items are removed from the cart or part of the order is cancelled or returned, the promotional savings will be void. Prices and offers are non-redeemable for cash, non-transferable, and may not be combined with other offers/discounts. Not stackable with other LG rebates via online submission at www.LG-Promos.com/ABS622.. Availability, prices and terms of offer are subject to change without notice.