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24 inch Class UltraFine 4K UHD IPS LED Monitor with macOS Compatibility.
23.7" IPS 4K Display
Optimized color performance for mac
LG 24MD4KL offers stunning UHD display, over 8 million pixels, quality versatilety. While you are viewing or editing images and watching videos with your mac, this high performance monitor delivers immaculate 4K resolution.
Richer color, Better Brightness
Supporting DCI-P3 & 500nits of brightness, LG UltraFine™ 4K Display can express razor-sharp text and life like images with wider color gamut and range of colors.
Powerful and Versatile Port
LG UltraFine™ 4K Display With Thunderbolt™ 3 supports 4K Daisy Chain setup to configure a versatile Mac workstation as well as charging Mac up to 85W simultaneously without a separate power cable.
4K Daisy Chain
Establish a dual-monitor environment by connecting two 4K monitors and a laptop using a Thunderbolt™ 3 cable.
*It can be connected via the Thunderbolt™ 3 cable included with the package.
Ensure optimal comfort and immersion for your creative work with the height-and-tilt adjustable stand, plus an easy setup VESA wall-mounting bracket.
*VESA mount bracket is not included in package.
Compatible with All Mac Devices
Thunderbolt™ 3 ports on 24MD4KL are fully compatible with all Mac devices* that support Thunderbolt™ 3 and USB Type-C™. And USB Type-C™ ports offer additional connectivity and power for compatible devices and accessories.
*The USB Type-C™ enabled Mac or iPad Pro can be connected via the USB Type-C ™ cable included in package.
21.9" x 20.8" x 9.0" (Up), 21.9" x 16.5" x 9.0" (Down)
Without Stand (WxHxD)
21.9" x 12.9" x 2.0"
Shipping Dimensions (WxHxD)
26.5" x 21.1" x 12.2"
With Stand Weight
Without Stand Weight
Display Position Adjustments
Wall Mount Size (mm)
100 x 100 mm
1 Year Parts and Labor
What people are saying
Rated 5 out of
Great monitorA bit of a thick bezel, but a great monitor with solid resolution, colour, and viewing angles.
Date published: 2020-07-16
Rated 1 out of
No PowerWaited two months for this monitor and can't get power to work.
So frustrating. Customer service was not at all helpful.
Date published: 2020-06-19
Rated 4 out of
Paul Freedman from
Amazing sharpness, contrast, and color gamutI bought this monitor approximately 1 month ago to use with my Mac Mini 2018 and it is the best monitor I have ever purchased. Amazing contrast, sharpness, and color fidelity. And the sound is not bad. I have only one caveat. It has not integrated 100% smoothly with my Mac Mini, an intermittent issue permitting use of Accessibility > Increase Contrast tool has required a software user account rebuild and so far Apple has not been able to isolate the cause other than help with the workaround. Also I cannot scale for 3840 (the true resolution of the monitor but only, for some reason, to 3008--however I use either the default or 2560 and this has not been a problem.)
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 it possible to connect a Thunderbolt to Gigabit-Ethernet Adapter to in the monitor and than at the same time a macbook pro to the monitor and obtain an internet connection. If yes does the download or upload speed changes
Asked by: DaveWo
Yes, I have a Satechi USB-C multi-port adapter with Ethernet adapter that supports GB Ethernet attached to one of the USB-C outputs on my LG Ultrafine 5K montor. I have not tested the Ethernet throughput though the Ethernet is communicated through the Thunderbolt and out the USB-C hub.
Answered by: omasou
Date published: 2020-08-04
I purchased 2 of the new 24" LG UltraFine 4K monitors, I have them installed side by side, the one of the left the whites look more "blueish" and the one of the right has "warmer" whites, what is the best way to calibrate the colors on both of them.
Asked by: logicito
I have the same problem. I have tried all available options to try to fix the problem. Was your problem solved?
Answered by: pablomlndz
Date published: 2020-08-01
Can this monitor be used with the different computers? Say a Mac mini as the main input, but occasionally a MacBook Air? Can I use separate cables/ports for the two computersor is there only one real “input” port? Thanks!
Asked by: GeoffB
The LG 24 inch UltraFine 4K UHD IPS Monitor with macOS Compatibility, Model # 24MD4KL is not designed for one specific computer. It can be used with a computer that has a Graphics card that supports its native resolution and can connect to the computer. The Thunderbolt™ 3 ports on the monitor are fully compatible with Mac devices that support Thunderbolt™ 3 and USB Type-C™. and USB Type-C™ ports offer additional connectivity and power for compatible devices and accessories. The USB Type-C™ enabled Mac or iPad Pro can be connected via the USB Type-C ™ cable included in the package...^IFV
Answered by: Ivanf
Date published: 2020-04-17
I have a mac pro 7.1 and cannot connect it to the ultrafine 4k with my thunderbolt 3 cable via usb-c. The screen stays black. Only one short cable will produce a picture. What is the exact cable spec I need?
Asked by: Mark5543
A USB Type-C™ enabled Mac or iPad Pro can be connected via the USB Type-C ™ cable included in package with the LG 24 inch UltraFine 4K UHD IPS Monitor with macOS Compatibility, Model # 24MD4KL-B. A Thunderbolt 3 cable that provides up to 85W of charging power which supports 4K video, audio, and data simultaneously to your MacBook Pro or MacBook Air with Thunderbolt 3 (USB-C) ports is also included in the package...^IFV
Answered by: Ivanf
Date published: 2020-02-14
Can you daisychain another display from the second thunderbolt 3 port, other than just another LG 4K ultrafine display? I am having trouble getting my second 4k display to work when daisychained through this monitor's second thunderbolt 3 port.
Asked by: jerbals
You can daisy chain two 4K monitors to the LG 24 inch UltraFine 4K UHD IPS Monitor with macOS Compatibility, Model # 24MD4KL-B via its Thunderbolt™ 3 ports using a Thunderbolt™ 3 cable. Regrettably, we do not have any information about the second 4K display you are attempting to daisy chain to determine what the issue is. You can contact our Support Center at (800) 243-0000 for troubleshooting assistance or contact the Support Center for your 4K monitor for assistance...^IFV
Answered by: Ivanf
Date published: 2020-01-08
Can an iPhone XS Max be connected to this monitor via some type of lightning to thunderbolt 3 cable/adapter in order to mirror the iPhones screen onto the monitor? If so, do you offer such a cable/adapter?
Asked by: HelloWorld
Regrettably, LG does not manufacture any cables or adapters, however, a USB-C and Thunderbolt cable are included accessories with the LG 24 inch UltraFine 4K UHD IPS Monitor with macOS Compatibility, Model # 24MD4KL-B. The monitor features 3 x USB-C ports and 2 x Thunderbolt 3 ports and it is a resolutely Mac-centric monitor that is compatible with the MacBook Pro and with recent iPad Pros. You may want to contact Apple to inquire if there are any cables or adapters that you can use with your iPhone XS Max that will allow you to connect to a monitor so you can mirror its screen on a monitor...^IFV
Answered by: Ivanf
Date published: 2020-01-08
How much is this monitor
Asked by: Wallac55
Pricing for the LG 24 inch UltraFine 4K UHD IPS Monitor with macOS Compatibility, Model # 24MD4KL-B will vary depending on which retailer you purchase it from or which online site you purchase it from. You will need to lcik on the "Where to Buy" tab to open a page on which you will get a listing for retailers within a 50-mile radius from your location who sell it or online sites. Each will have a link that you can use to open a page on their sites that show the pricing...^IFV
Answered by: Ivanf
Date published: 2019-11-15
Is it OK to mount this monitor in the portrait way/vertically? The manual says it is not recommended, but why? Any damages if mounted vertically?
Asked by: MDDY
The LG 24 inch UltraFine 4K UHD IPS Monitor with macOS Compatibility, Model # 24MD4KL is not designed to be used in portrait mode and does not have the necessary venting to rid the excess heat that is generated by flipping it into portrait mode...^IFV
*Prices, promotions and availability may vary by store and online. Prices subject to change without notice. Quantities are limited. Check with your local retailers for final price and availability.
Browse all of LG’s innovative, state-of-the-art computer monitors, including:
5K monitors. Take it up a notch with the LG UltraFine monitor, boasting an immersive 27-inch display with 5120 x 2880 resolution and 218 ppi that lets you experience the beauty of a MacBook or MacBook Pro on a large 5K screen. Add to that an unbelievable color spectrum of P3 99% and you’ll be editing and enjoying high-res photos like never before. Too much for you to handle? There’s an impressive 21.5-inch Mac-friendly 4K version as well.
21:9 Curved UltraWide monitors. These high-performance, feature-packed monitors are quite the multitaskers themselves, featuring UltraWide 21:9 resolution, 4-Screen Split, Mac-compatibility, Dual Linkup and stunning Full HD 1080p. They’re the perfect solutions for designers, photographers, gamers and other professionals who need more room for their big ideas.
IPS monitors. Boasting true-to-life colors, IPS computer monitors lessen color loss and help keep colors consistent at virtually any angle. The LED backlighting delivers deep black levels and rich colors for an amazing contrast and color detail.
Gaming monitors. Get panoramic multitasking and immersive gaming with features like a 144Hz refresh rate—the highest of any gaming monitor—plus a response time of less than 1ms (1/1000 of a second) in Motion 240 Mode. It’s the ideal monitor for real-time strategy and first-person shooters. Dynamic Action Sync lets you catch every single moment in real time, while LG’s Black Stabilizer brightens dark scenes so the enemy can’t hide. Get true-to-life color and brilliant clarity from virtually every angle.
TV monitors. Get Full HD 1080p entertainment from the TV, as well as your computer. With features like a built-in digital tuner and Dolby Surround sound, LG TV monitors can bring your favorite movies and TV shows to life, along with your favorite online content and games.
Discover the latest innovations in performance and technology with LG computer monitors—and choose one that fits your world. From 4K, IPS and gaming monitors, to TV, LED, UltraWide, UltraFine options and more. It’s time to make life good.
Design, features and specifications subject to change without notice. Screen images simulated and/or dramatized. Some features in videos may not be available on all models. Please refer to the TECHNICAL SPECIFICATIONS tab for a complete list of features by model.