LG 27MK400H-B 27″ 75Hz Monitor

27 inch · 1920 x 1080 · 75 Hz · TN

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Screen size 27 inch
Resolution 1920 x 1080
Refresh rate 75 Hz
Panel TN
Response time 2 ms

LG 27MK400H-B 27″ 75Hz Monitor is a 27-inch monitor with 1920 x 1080 resolution, a 75 Hz refresh rate and TN panel. Fine for work and everyday use; for fast shooters look at 144 Hz and up. It came out in 2026.

Released: 2026-03-31

Specifications

Key specs

Screen size: 27 inch
Resolution: 1920 x 1080
Refresh rate: 75 Hz
Panel: TN
Response time: 2 ms
Released: 2026-03-31
Part number: 27MK400H-B.AWP

Display

Display diagonal: 68.6 cm (27")
Display resolution: 1920 x 1080 pixels
HD type: Full HD
Native aspect ratio: 16:9
Display technology: LCD
Panel type: TN
Display brightness (typical): 300 cd/m²
Display brightness (min): 240 cd/m²
Response time: 2 ms
Anti-glare screen: Yes
Screen shape: Flat
Supported graphics resolutions: 1920 x 1080 (HD 1080)
Contrast ratio (typical): 1000:1
Maximum refresh rate: 75 Hz
Viewing angle, horizontal: 170°
Viewing angle, vertical: 160°
Display number of colours: 16.7 million colours
Pixel pitch: 0.3113 x 0.3113 mm
Display diagonal (metric): 68.6 cm
Surface hardness: 3H
NTSC coverage (typical): 72%

Performance

AMD FreeSync: Yes
AMD FreeSync type: FreeSync
Flicker-free technology: Yes

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Design

Product colour: Black
Feet colour: Black

Ports & interfaces

VGA (D-Sub) ports quantity: 1
HDMI: Yes
HDMI ports quantity: 1
Headphone out: Yes
Headphone outputs: 1
Headphone connectivity: 3.5 mm
DC-in jack: Yes

Ergonomics

VESA mounting: Yes
Panel mounting interface: 100 x 100 mm
Wall mountable: Yes
Tilt adjustment: Yes
On Screen Display (OSD): Yes

Power

Energy efficiency class (SDR): E
Energy consumption (SDR) per 1000 hours: 21 kWh
Power consumption (typical): 25.2 W
Power consumption (standby): 0.3 W
Power consumption (max): 28 W
Power consumption (off): 0.3 W
AC input voltage: 100 - 240 V
Power supply type: External

Weight & dimensions

Width (with stand): 625.6 mm
Depth (with stand): 204.1 mm
Height (with stand): 468.7 mm
Weight (with stand): 4.6 kg
Width (without stand): 625.6 mm
Depth (without stand): 44 mm
Height (without stand): 375.2 mm
Weight (without stand): 4.2 kg

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About this product

Full HD Picture Quality Experience Stunning Full HD With clarify of 1080p Full HD, everything looks more detailed than standard HD and a lot more inviting. AMD FreeSync™ Clearer, Smoother Image AMD FreeSync™ Technology and a dynamic refresh rate of 75Hz virtually eliminates screen tearing and stuttering to bring you seamless, fluid movement during high-res, fast-paced games. Dynamic Action Sync React Faster to The Action Dynamic Action Sync mode allows you to instantly react to your opponents and attack them without any display lag. It synchronises your senses with real-time scenes in fast-paced games by minimising input lag. Black Stabilizer Enemies Have Nowhere to Hide Black Stabilizer gives you full visual clarity, even in games where you spend a lot of time in the dark. It synchronises and brightens the darkest areas, so that you can find enemies hiding in the shadows and shoot first. OnScreen Control Easier User Interface OnScreen Control is simple and intuitive. You can customise your display options with a few simple clicks. Wall Mount Convenient and Flexible Mount the monitor to suit your work or entertainment set up.

User manual (PDF)

27MK400H-B vs similar monitors

	LG 27MK400H-B 27″ 75Hz Monitor	LG 27GK750F-B 27″ 240Hz Monitor	LG 20MK400H-B 20″ 60Hz Monitor	LG 22MK400H-B 22″ 75Hz Monitor
Screen size	27 inch	27 inch	20 inch	22 inch
Resolution	1920 x 1080	1920 x 1080	1366 x 768	1920 x 1080
Refresh rate	75 Hz	240 Hz	60 Hz	75 Hz
Panel	TN	TN	TN	TN
Response time	2 ms	2 ms	2 ms	5 ms
Released	2026	2026	2026	2026