AOC G4 U27G4R computer monitor 68.6 cm (27") 3840 x 2160 pixels Quad HD LED Black, Red

Manufacturer: AOC | Model: U27G4R | Product ID: 2089 | Warranty: 3 years
£321.28 (inc. VAT)
Availability: 0 in stock

Product Technical Specification

Display
Display diagonal27
Display resolution3840 x 2160
HD typeQuad HD
Native aspect ratio16:9
Display technologyLED
Panel typeFast IPS
LED backlightYes
Backlight typeW-LED
TouchscreenNo
Display brightness (typical)400
Response time1
Response time measurement typeGTG (Gray to Gray)
Response time (MPRT)0.3
Anti-glare screenYes
Screen shapeFlat screen
Contrast ratio (typical)1000:1
Maximum refresh rate320
Viewing angle, horizontal178
Viewing angle, vertical178
Display number of colours16.7 million colours
Pixel density163
Digital horizontal frequency30 - 360
Digital vertical frequency48 - 320
Display diagonal (metric)68.6
High Dynamic Range (HDR) supportedYes
High Dynamic Range (HDR) technologyDisplayHDR 400
sRGB coverage (typical)124.7
Adobe RGB coverage93.4
DCI-P3 coverage95.9
Performance
VESA Adaptive Sync supportYes
Low Blue Light technologyYes
Design
Market positioningGaming
Product colourBlack,Red
Frameless designYes
Front bezel colourBlack
Detachable standYes
Ports & interfaces
Built-in USB hubYes
USB hub version3.2 Gen 1 (3.1 Gen 1)
USB upstream port typeUSB Type-B
Number of upstream ports1
USB Type-A downstream ports quantity4
HDMI ports quantity2
HDMI version2.1
DisplayPorts quantity1
DisplayPort version1.4
Headphone outYes
Headphone outputs1
Headphone connectivity3.5 mm
Ergonomics
VESA mountingYes
Panel mounting interface100 x 100
Cable lock slotYes
Cable lock slot typeKensington
Height adjustmentYes
Adjustable height (max)130
PivotYes
Pivot angle-90 - 90
SwivellingYes
Swivel angle range-30 - 30
Tilt adjustmentYes
Tilt angle range-3.5 - 21.5
Picture-in-PictureYes
On Screen Display (OSD)Yes
On Screen Display (OSD) languagesCHI (SIMPL),CHI (TR),CRO,CZE,DEU,DUT,ENG,ESP,FIN,FRE,ITA,JPN,KOR,POL,POR,RUS,SWE,TUR,UKR
Number of OSD languages19
Power
Energy efficiency class (SDR)F
Energy efficiency class (HDR)G
Energy consumption (SDR) per 1000 hours25
Energy consumption (HDR) per 1000 hours50
Power consumption (typical)34
Power consumption (standby)0.5
Power consumption (off)0.3
Power supply typeInternal
Energy efficiency scaleA to G
Weight & dimensions
Width (with stand)613.9
Depth (with stand)227.6
Height (with stand)516
Weight (with stand)6350
Width (without stand)613.9
Depth (without stand)51.28
Height (without stand)366.31
Weight (without stand)4410
Packaging data
Package width825
Package depth481
Package height162
Package weight9950
Other features
Low input lagYes
FPS counterYes
Dial pointYes
Shadow controlYes
Motion blur reductionYes
Warranty period3

Delivery Options

Economy Delivery
FREE
Economy Delivery

Economy Delivery (UK)

Estimated delivery date: Sun 07th Dec 2025 to Wed 10th Dec 2025
Fast & Tracked by Courier
£6.95
Fast & Tracked by Courier

Fast & Tracked by Courier (UK)

Estimated delivery date: Sat 06th Dec 2025 to Mon 08th Dec 2025
View all Delivery Options & International Rates

Dominate your gaming experience with the U27G4R Dual-Frame Monitor, a cutting-edge display offering ultimate flexibility between UHD at 160Hz and FHD at 320Hz.
Meet the U27G4R Dual-Frame Monitor, featuring the ability to switch between UHD@160Hz and FHD@320Hz resolutions and refresh rates for ultimate versatility in gaming and content creation. With a Fast IPS panel, 1ms GtG, and 0.5ms MPRT, enjoy ultra-responsive performance and vibrant visuals. HDR400 and AdaptiveSync (G-Sync TBC) ensure smooth, tear-free action, while HDMI 2.1 provides superior connectivity. The ergonomic eSports base design offers comfort during long sessions, making the U27G4R perfect for seamless multitasking and immersive gaming.

Display
Display diagonal27
Display resolution3840 x 2160
HD typeQuad HD
Native aspect ratio16:9
Display technologyLED
Panel typeFast IPS
LED backlightYes
Backlight typeW-LED
TouchscreenNo
Display brightness (typical)400
Response time1
Response time measurement typeGTG (Gray to Gray)
Response time (MPRT)0.3
Anti-glare screenYes
Screen shapeFlat screen
Contrast ratio (typical)1000:1
Maximum refresh rate320
Viewing angle, horizontal178
Viewing angle, vertical178
Display number of colours16.7 million colours
Pixel density163
Digital horizontal frequency30 - 360
Digital vertical frequency48 - 320
Display diagonal (metric)68.6
High Dynamic Range (HDR) supportedYes
High Dynamic Range (HDR) technologyDisplayHDR 400
sRGB coverage (typical)124.7
Adobe RGB coverage93.4
DCI-P3 coverage95.9
Performance
VESA Adaptive Sync supportYes
Low Blue Light technologyYes
Design
Market positioningGaming
Product colourBlack,Red
Frameless designYes
Front bezel colourBlack
Detachable standYes
Ports & interfaces
Built-in USB hubYes
USB hub version3.2 Gen 1 (3.1 Gen 1)
USB upstream port typeUSB Type-B
Number of upstream ports1
USB Type-A downstream ports quantity4
HDMI ports quantity2
HDMI version2.1
DisplayPorts quantity1
DisplayPort version1.4
Headphone outYes
Headphone outputs1
Headphone connectivity3.5 mm
Ergonomics
VESA mountingYes
Panel mounting interface100 x 100
Cable lock slotYes
Cable lock slot typeKensington
Height adjustmentYes
Adjustable height (max)130
PivotYes
Pivot angle-90 - 90
SwivellingYes
Swivel angle range-30 - 30
Tilt adjustmentYes
Tilt angle range-3.5 - 21.5
Picture-in-PictureYes
On Screen Display (OSD)Yes
On Screen Display (OSD) languagesCHI (SIMPL),CHI (TR),CRO,CZE,DEU,DUT,ENG,ESP,FIN,FRE,ITA,JPN,KOR,POL,POR,RUS,SWE,TUR,UKR
Number of OSD languages19
Power
Energy efficiency class (SDR)F
Energy efficiency class (HDR)G
Energy consumption (SDR) per 1000 hours25
Energy consumption (HDR) per 1000 hours50
Power consumption (typical)34
Power consumption (standby)0.5
Power consumption (off)0.3
Power supply typeInternal
Energy efficiency scaleA to G
Weight & dimensions
Width (with stand)613.9
Depth (with stand)227.6
Height (with stand)516
Weight (with stand)6350
Width (without stand)613.9
Depth (without stand)51.28
Height (without stand)366.31
Weight (without stand)4410
Packaging data
Package width825
Package depth481
Package height162
Package weight9950
Other features
Low input lagYes
FPS counterYes
Dial pointYes
Shadow controlYes
Motion blur reductionYes
Warranty period3

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Buykingston order despatch times:

We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.

These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).

We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.

Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.

Despatch times do not apply to UK public holidays.

Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.

Our warehouse reserves the right to upgrade the delivery method you select on your order.

Our available delivery options*

Contact us for a shipping quote.

*All delivery times are estimated unless stated.

Product Returns Note

Buykingston offers a very flexible and hassle free returns policy. If for whatever reason you are not happy with the item purchased you can return it to us within 12months for a refund (for unused and unopened items) or within 30 days on opened and used items for a refund. This applies to items purchased direct through Buykingston  only.

Our 30 Day Returns Money Back Guarantee Satisfaction Guarantee:
For items opened and used and that are returned in a resellable condition.

Our 365 Day Returns Money Back Guarantee Satisfaction Guarantee:
For items that remain sealed and unused.

Some items are excluded from our moneyback guarantee unless they have developed a fault. These include;

- Headphones
- Earphones
- Custom made and designed products such as flash memory products with custom logo’s on them. E,g USB flash drives and memory cards with your own logo

Returns FAQs

What is your returns criteria?
On opened items 30 days from date of receipt or expected date of receipt on non tracked items.
On unopened items 365 days.

How do i go about returning my order?
Please contact us via our contact page with your order number where we will present you with an RMA number and returns label.

Do i need to contact you before returning my order?
Yes, to obtain an RMA number.

Does my item have to include its original packaging?
Yes for items that fall within our 30 day money back guarantee and our 365 day returns. Of course for faulty items we realise you may no longer have the packaging.

Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer direct for assistance.

Please ensure you have read and comply in full with Section 11 & 13 of our terms and conditions which you can read here in full.