Lg UltraFine 27MD5KL-B 27" 16:9 5K IPS Monitor

Model: 27MD5KL-B

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USB Power Delivery 94 W (via USB Type-C)
Power Consumption 1 W (Standby)
140 W (Typical)
45.65 W (Eco)
200 W (Maximum)
AC Input Power 100 to 240 VAC, 50 / 60 Hz
Power Adapter Type Internal


Rotation Adjustment None
Tilt Adjustment -5 to 25°
Swivel Adjustment None
Weight 18.7 lb / 8.48 kg (with Stand)
14.1 lb / 6.40 kg (without Stand)
Dimensions (W x H x D) 24.6 x 22.6 x 9.4" / 624.8 x 574.0 x 238.8 mm (with Stand)
24.6 x 14.8 x 2.1" / 624.8 x 375.9 x 53.3 mm (without Stand)
Height Adjustment 4.33" / 110 mm

Packaging Info

Box Dimensions (LxWxH) 30 x 22 x 12"
Package Weight 28.15 lb

Inputs / Outputs

Built-In Speakers Yes, 2 x 5 W
Connectivity 3 x USB Type-C (USB 3.1 / USB 3.2 Gen 1)
1 x USB Type-C (Thunderbolt 3)
Webcam User-Facing:


Viewing Angle Horizontal: 178°
Vertical: 178°
Panel Type IPS-Type LCD
Dot Pitch 0.11685 x 0.11685 mm
Touchscreen No
Size 27"
Resolution 5120 x 2880
Aspect Ratio 16:9
Pixels Per Inch (ppi) 217 ppi
Finish Matte
Maximum Brightness 500 cd/m2
Contrast Ratio 1100:1
Refresh Rate 60 Hz
Adaptive-Sync Technology None
Bit Depth / Color Support 8-Bit+FRC (1.07 Billion Colors)
HDR Compatibility None
Color Gamut 99% DCI-P3
99% CIE1976
Response Time 14 ms (GtG)
User Reviews
6 September 2022

I just got the monitor through my upgrade with an M1 Macbook Pro and thunderbolt hub. I could not get the monitor resolution above 4K. I had an OWC thunderbolt cable for my SSD that is blazing fast. I tested monitor with that cable and everything worked fine but supplied cables were trash.

  • +

    Style/Design, camera

26 December 2020

The picture is gorgeous. Also, it makes my MacBook Pro heat up, and I can't stop it from charging it; it has no on/off button; and it won't work with KVM switches, so I can't connect it to a PC -- it also won't work with a DisplayPort or HDMI connection. Not worth the trouble.

5 September 2020

Just stunning. Remarkable quality. Slight challenge to match to the iMac Pro color but worth the effort. Small downside is the slight “tin-can” sound quality of the speakers and the very slightly overexposed camera - but 99.9% of people wouldn’t even notice. I’m a multimedia guy so I do.

31 October 2023

As a display - good. It enables labtop charging from the display, so that's good.However, the three USB-C ports seem to be entirely cosmetic and don't actually do anything to connect a downstream device. Note that they are USB, not thunderbolt.

  • +


25 February 2020

I bought this monitor to use as an external monitor for a 16 MacBook Pro laptop. The display is very bright and crisp and is easily visible in my sun filled room.This is a very Mac oriented display with all setup and configuration done through the Mac.

14 September 2021

I wanted a high-res monitor for my MacBook Pro to help with my video and image editing. Until Apple release their own monitors (which they are apparently working on) this appears to be the best option...but you're paying a big price. Very happy with it so far...

8 May 2023

This 5K display worked flawlessly for about two years. Vertical lines, however, starting showing up. That was very disappointing considering that an older LG 4K display never presented that problem.

  • +

    ease of use, Style/Design, Features/Settings, camera, Performance

12 August 2020

Had a slight worry about issues, but so far, this monitor is great. Love the integrated camera and speakers and the single cable.

12 March 2021

The picture is beautiful, and while it doesn't have the fastest refresh it's great for text and movies. What isn't so great: sometimes I see vertical tearing that requires me to unplug and replug the cable. The webcam brightness detection is very poor.

9 September 2022

I have 2 of them at home for about 3 years... They replaced my humble attempts of getting one ultrawide monitor and keeping it. But the colors on this monitor are just spot on. Let it be photography, UI design, Graphics design... its...

  • +

    ease of use, Performance

Product Highlights
  • In-Plane Switching (IPS) Panel
  • USB Type-C | Thunderbolt 3 Inputs
  • 5120 x 2880 5K Resolution
  • 1100:1 Static Contrast Ratio
  • 500 cd/m² Brightness
  • 178°/178° Viewing Angles
  • 14 ms Response Time (GtG)
  • 60 Hz Refresh Rate
  • 1.07 Billion Colors
  • Built-In USB Hub, Camera, Speakers
In The Box
  • LG UltraFine 27MD5KL-B 27" 16:9 5K IPS Monitor
  • Wall Mount Cover
  • USB Type-C Cable
  • Thunderbolt 3 Cable
  • Power Cable
  • Limited 1-Year Warranty
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