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Samsung Essential Monitor S4 S40GD 27 inch IPS Full HD 100Hz, Height Adjustable, DisplayPort and 2x HDMI (LS27D400GAUXEN)

Brand:
Samsung
Samsung S40GD 27" FHD 100Hz IPS Ergonomic Pivot Monitor
Samsung Essential Monitor S4 S40GD 27 inch IPS Full HD 100Hz, Height Adjustable, DisplayPort and 2x HDMI (LS27D400GAUXEN)
€193.89 inc. VAT
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LS27D400GAUXEN
€162.93 €181.03
€193.89 inc. VAT
Ships from EU stock: 180 item(s)
Product Code
03:278921
EAN Code
8806095803050
Manufacturer
Samsung

Quick Specs

Panel
27″ flat IPS
Stand
Height, swivel, pivot
Ports
DP 1.2 + 2× HDMI + USB hub
Energy Class
C — 14 W typical
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Samsung Essential Monitor S4 — 27-inch IPS with a full ergonomic stand

27″ IPS, 100 HzHeight, swivel & pivotDP + 2× HDMI + USB hubEnergy class C

The LS27D400GAUXEN is Samsung’s 27-inch Essential Monitor S4 (S40GD) — a flat IPS panel at Full HD 1920 × 1080, running at 100 Hz with a 5 ms grey-to-grey response. Unlike every cheaper model in the Essential range it has a fully adjustable stand with height, swivel and pivot, a real port set including DisplayPort 1.2, two HDMI inputs and a two-port USB hub, and the best efficiency here at energy class C and 14 W. This version ships with an HDMI cable in the box.

Compatibility — check before buying:
This part number ships with an HDMI cable only. Samsung sells the identical monitor as LS27D402GAUXEN, which adds a DisplayPort cable to the box. Every other published specification matches exactly. The monitor still has a DisplayPort input; you simply supply your own cable. If you already own one, or you are connecting over HDMI, this is the version to buy.

What the S4 gives you over the cheaper S3 models, since they sit side by side on the shelf: a height, swivel and pivot stand instead of tilt only; DisplayPort 1.2 plus two HDMI and a USB hub instead of one HDMI and a VGA socket; VESA 100 × 100 (the curved S3 models use 75 × 75); energy class C at 14 W instead of D or E at 16–21 W; and TCO Certified with EPEAT Silver, which matters for corporate and tender purchasing. What you give up is contrast — 1000:1 here against 3000–4000:1 on the curved VA models — and there are no speakers; only the LS27D396GAUXEN has those.

One thing to set yourself: the monitor ships at 60 Hz. Switch it to 100 Hz in the on-screen menu and in your display settings.

Best For

✓ Eight hours a day of actual work
✓ A desk shared with a colleague, or a screen viewed off-axis
✓ Two machines connected at once, switched from the on-screen menu
✓ Rotating to portrait for long documents and code

Key Features

 
A stand that actually adjusts
105 mm of height, ±45° swivel and ±92° pivot to portrait. This is the single biggest practical difference from every cheaper Essential model, which tilt and nothing else. Getting a screen to the right height is the difference between a comfortable working day and a sore neck, and it is not something you can fix later without buying an arm.
 
DisplayPort, two HDMI and a USB hub
Enough inputs to leave a desktop and a laptop connected at once and switch between them from the on-screen menu. The two-port USB 2.0 hub handles a keyboard and mouse without reaching behind the PC.
 
IPS — colour that holds up off-axis
Colour and brightness stay consistent when you are not sitting dead centre, which covers the everyday reality of an office: someone leaning over your shoulder, a screen not quite square to your chair, two people looking at the same spreadsheet.
 
Energy class C at 14 W — the best at this size
Notably better than the rest of the 27-inch Essential range, which runs at class D or E and 16 to 21 W. On a screen that is on eight hours a day, five days a week, that is a real running-cost difference, and it comes with TCO Certified and EPEAT Silver.
 
Rotates to portrait
±92° of pivot turns the screen upright, which is genuinely useful for long documents, code and anything you scroll rather than scan across. Very few monitors at this price allow it.

Technical Specifications

Identification
Brand Samsung
Official Name 27″ Essential Monitor S4 S40GD Full HD IPS 100Hz
Model Name S27D400GAU
Series S40GD
Part Number (MPN) LS27D400GAUXEN
EAN / GTIN 8806095803050
Colour Black
Panel & Image
Panel Type IPS (in-plane switching)
Screen Shape Flat
Screen Size 27″ class
Resolution 1920 × 1080 (Full HD)
Aspect Ratio 16:9
Refresh Rate Up to 100 Hz — ships set to 60 Hz, must be changed in the OSD and in Windows
Response Time 5 ms grey-to-grey (GTG)
Brightness 250 cd/m² typical, 200 cd/m² minimum
Contrast Ratio 1000:1 typical static, plus a “Mega” dynamic contrast mode
Viewing Angles 178° horizontal / 178° vertical
Colour Support 16.7 million colours
Colour Gamut 72% NTSC (CIE 1931)
Connections
DisplayPort 1 × DisplayPort 1.2 (HDCP 1.2)
HDMI 2 × HDMI 1.4 (HDCP 1.4)
USB Hub 1 × USB Type-B upstream, 2 × USB 2.0 downstream
Headphone Output Yes
Built-in Speakers None
D-Sub (VGA) None — unlike the S3 models, there is no VGA input
Features
Game Mode Yes
AMD FreeSync Explicitly “No” in Samsung’s specification table (and no G-Sync)
Eye Comfort Eye Saver Mode and Flicker Free
Certifications TCO Certified, EPEAT Silver, Windows 11 certified
Stand & Mounting
Tilt −3.0° (±2.0°) to 25.0° (±2.0°)
Height Adjustment 105 mm (±5.0 mm)
Swivel ±45.0°
Pivot ±92.0° — rotates to portrait
VESA Mount 100 × 100 mm
Power & Energy
EU Energy Class C
Typical Consumption (SDR) 14.0 W — the lowest of Samsung’s 27-inch Essential range
Maximum Consumption 45 W
Standby / Off 0.50 W in DPMS / 0.30 W off
Physical
Dimensions with Stand 612.7 × 538.3 × 219.0 mm
Dimensions without Stand 612.7 × 360.9 × 39.8 mm
Weight with Stand 4.0 kg
Weight without Stand 2.7 kg
Box Contents Monitor, power cable (1.5 m), HDMI cable. No DisplayPort cable — the LS27D402GAUXEN includes one.
Warranty
Warranty 1-Year Warranty (Singular)
Manufacturer Term Samsung publishes a 2-year term for monitors in the EU. Singular’s direct warranty on this item is 1 year.
Not Published by Samsung
Omitted Specifications MPRT response time, input lag, HDR support, panel bit depth, panel supplier and the model year are not published. Samsung publishes a 72% NTSC figure here but no sRGB percentage, while its curved Essential models publish 95% sRGB and no NTSC — the two cannot be compared from Samsung’s own data.
HDR Not published for this monitor — treat it as SDR only.
A Note on FreeSync Samsung prints an explicit “No” for both FreeSync and G-Sync on this model. Game Mode, Eye Saver Mode and Flicker Free are published.

Frequently Asked Questions

What is the difference between the S27D400 and the S27D402?
The cable in the box, and nothing else. Samsung publishes identical specifications for the two — same panel, ports, stand, VESA, energy class, power, dimensions and weight. The D402 includes a DisplayPort cable alongside the HDMI one; the D400 ships with HDMI only. Both have the DisplayPort input. Buy on price unless you need the cable.
Does it have speakers?
No. There is a headphone output but no built-in speakers. In the Essential range only the 27-inch curved LS27D396GAUXEN has them.
Can I connect two computers?
Yes — one DisplayPort and two HDMI inputs, switched from the on-screen menu. With the USB hub you can also share a keyboard and mouse if you move the USB-B cable, though there is no automatic KVM switching.
Should I buy this or the cheaper curved S3?
If you work at it, this one — the height-adjustable stand and the ports matter far more over an eight-hour day than the contrast difference, and it uses less power. If it is for films at home, the curved VA models look better, with 3000:1 or 4000:1 contrast against this panel’s 1000:1.
Why is my monitor running at 60 Hz?
Because that is how it ships. Switch it in the on-screen menu and then set 100 Hz in your display settings.
Does it support FreeSync?
No. Samsung prints an explicit “No” for both FreeSync and G-Sync on this model. Game Mode is supported.
Singular Expert Insight
If you are buying a monitor to work at rather than to watch, this is the one in Samsung’s Essential range worth the money, and the gap is wider than the price suggests. The stand alone justifies it: height, swivel and pivot at this level is unusual, and a screen at the wrong height is a problem you notice in your shoulders by Thursday. Add DisplayPort and two HDMI inputs, a USB hub, VESA 100 × 100 and the best efficiency at this size, and it is a genuinely better tool than anything else in the range. What you trade away is contrast — 1000:1 against 3000:1 or 4000:1 on the curved models — and there are no speakers. That is the right trade for an office and the wrong one for a living room. Between the two S4 part numbers, this is the one to buy unless you specifically need a DisplayPort cable supplied — the monitors themselves are identical. Browse the rest of our PC monitors, or a monitor stand or arm if the supplied base is the sticking point.

Buyer’s Guide

Buy it if

You work at this screen every day and want a height-adjustable, pivoting stand, DisplayPort and two HDMI inputs, and the lowest running cost at this size.

Skip it if

You mainly watch films or play games at home — the curved VA models have three to four times the contrast — or you need built-in speakers.

Also consider

The LS27D402GAUXEN, the same monitor with a DisplayPort cable added, or the curved S39GD if contrast matters more than ergonomics.

Features - Samsung - LS27D400GAUXEN

Colour
black
More Details
Product Code
03:278921
EAN Code
8806095803050
Manufacturer
Samsung
Technical specifications
Monitor Size
27"
Resolution
FHD (1080p)
Resolution (raw)
1920×1080
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