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

B h photo.34921152
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.

Micro center.34865720
22 September 2020

Simplicity, integration and simple quality of actual display sets this apart from all others I considered...Working both in photography and writing, it makes working from home not only easier but enjoyable as well...The Thunderbolt/USB-C interface could not produce simpler and better results

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.

20 March 2022

I'm a full-time graphic designer and have been using this as my second display. The resolution and quality of the monitor are amazing, and it's super easy to set up. I'd recommend this to anyone, especially creative professionals and gamers like myself who want the best display quality.

  • +

    Style/Design, ease of use, Performance, Quality, camera

B h photo.34921152
26 December 2020

No brightness control on the monitor. Controlling the brightness from a MacBook Pro with the touch bar seldom works. Controlling it with Settings is possible more often (far from always), but cumbersome. Buy something else.

Micro center.34865720
30 June 2021

Great Display. Perfect for what I need. Great for digital editing

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...

31 January 2022

I am pleased with the quality of the 5K Ultra-Fine monitor. I bought it with the Mac Mini M1 computer. They work together well.The reason for the 4 stars instead of 5, is because the built in web cam has constant flickering and there is nothing you can do to control it and absolutely no help from...

  • +

    Performance, Quality

B h photo.34921152
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.

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
Still Have Questions?
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